227 Answered Questions for the topic Quadratic Formula

Need help with a question using the quadratic formula

Could someone help me with this question step-by-step using the quadratic formula?   3x²-17x+10

How to solve this quadratic equation with the quadratic formula?

I've been having trouble with this problem: x2 + 2x = 8 So far this is what I got: -2±√-28-----------     2  However I'm not too sure what to do next, help?

How to solve this quadratic equation with the quadratic formula?

I've been having trouble with this problem:   x2 + 2x = 8   So far this is what I got:   -2±√-28-----------      2   However I'm not too sure what to do next, help?

One, Two, or No Real Solution Problem.

How do I know if this has One, Two, or No Real Solution?   -3x^2 + 5x - 1 = 0    

If the area of a rectangle is 5l3 + 5l2w - 2lw - 2w2, find its length and width. A = lw

Please explain your reasoning. 

Use the technique of completing the square to transform the quadratic equation into the form (x + c)^2 = a.

Question1. 6x^2 – 36x + 42 = 0 Question2. 3x^2 – 48x + 153 = 0

Quadratic equation related doubt

How to get the formula s=1/2(αβ/α+β)t2 

how do i solve with quadratic formula?

what is the exact process of the Quadratic Formula?

suppose that the equation v=5.5x^2-440x+17500 represents the value of a car from 1970 to 2017. What year did the car have the least value? (x=0 in 1970)

suppose that the equation v=5.5x^2-440x+17500 represents the value of a car from 1970 to 2017. What year did the car have the least value? (x=0 in 1970)

Find the dimensions of the fielld

The area of the field is 800 yd.² The length of the field is twice the width  

9w^2 – 7 = 0

The answer must be in decimal in hundreths  

A number is 30 less than its square .

A number is 30 less than its square.find the numbers

Can you use the quadratic formula to solve any quadratic equations?

Can you use the quadratic formula to solve any quadratic equations?

Julie wants to build a sidewalk of uniform width around her garden.

Julie wants to build a sidewalk of uniform width around her garden. Her garden is rectangular, and its dimensions are 20 feet by 30 feet. She has enough pavers to cover 900 square feet and wants to... more

quadratic formula

i bought a truckload of wreaths for 750$ and priced them so I would make a 2$ profit on each one sold. When i sell all but 100 wreaths, i break even. how many wreaths were in the truckload?

How long does he have until the ball reaches the ground?

Draco steals and throws Neville's red ball straight up at 78 feet per second from about 10 feet above the ground. The ball's height in feet above the ground after t seconds is given by... more

What are the lengths of the sides of the mirror and the painting?

A square mirror has sides measuring 2 feet less than the sides of a square painting. If the difference between their areas is 32 square feet, find the lengths of the sides of the mirror and painting.  more

What are its dimensions?

Someone installs 96 feet of electric fencing around a rectangular headquarters. If the headquarters covers 540 square feet, what are its dimensions? 

Quadratic Word problem

A toy rocket is launched form a 3m platform, at 8.2m/s. The height of the rocket is modelled by the equation h=-4.0t^2+8.1t+3 where h is the height, in metres, above the ground and t is the time,... more

What is this formula for in the mathematic point of view?

I have derived a formula and I wonder what formula is similar to this one in a mathematical point of view?   F = (X2 - Y2)/ (X - Y )2   Is there any formula that looks like this one and is used... more

When will the object hit the ground after it is launched? Explain how you found your answer

An object is launched from the ground. The object’s height, in feet, can be described by the quadratic function h(t) = 80t – 16t2, where t is the time, in seconds, since the object was launched.

Solve the equation x = 2 × 1 x + 1

Find a number that is exactly 1 more than 2 times its reciprocal. That is, solve the equation x = 2 × 1 x + 1.

use quadratic formula to solve

x^2-3x-5=0

solving by the quadratic formula

In Algebra 1 I am given the following problem:   Solve by the quadratic formula: 5x - 1 = 2x2 Please help me.

Newspaper profit

A newspaper's profit is $20 per year for each of its 2,500 subscribers. Management estimates that the profit per subscriber will increase by 1¢ for each additional subscriber over the current... more
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