how to use the quadratic formula

the problem 7x^2+123x-4

04/26/13

i cant seem to get the right answer i put 1 after all the

the exponent is the 3 the base is 2 -(29-8X3) ......i got 1

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Composition of Functions

(f*g)(x) and (g*f)(x) f(x)=x-4 and g(x)=3x-4 Not sure how to do  

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Inverse Function

f(x)=6x-1 Not sure on where to start from...

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Divide to find the answer.

8x^3-2x+6 divided by 2x= (simplify your answer)

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Specify the Domain of Each Function

f(x)=x^2-9 Not sure where to even start...

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Select the answer that best completes the given statement.

Because 2x^3-x+5 divided by x+1 equals 2x^2-2x+1 with remainder 4, it follows that 2x^3-x+5=? (a) (x+1+4)x(2x^2-2x+1. (b) 4 x (2x^2-2x+1+x+1. (c) (x+1) x 2x^2+2x+1)+4. (d) (x+1) x (2x^2 - 2x+1+4.

If a sum of money is deposited in a savings account that is paying x percent annual interest (expressed as a decimal.)

Then this sum of increases by a factor of (1+x^3 after years. (a) Multiply the expression.) (b) Evaluate the polynomial expression found in part (a) for an annual interest rate of 50% or x=0.5  

04/26/13

(2a+4)^3=?

What's the product?

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Multiply to find the answer.

(6b+2)^2=?

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Multiply to find the answer

(8m+7n)(8m+7n)=?

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The two expressions (x+y)^2 and x^2+y^2 are equal for all real numbers x and y

Is the statement true or false ?

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The length of an office is x feet and the width is x+4 feet.

Write the polynomial that represents the area. Find the area if x=11. Choose the polynomial that represents the area. (a) 2x+4x (b) x^2+4x (c) x^2+4 (d) 2x+4

04/26/13

Multiply to find answer.

(a+4)(a^2-7a+7)=?

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Multiply to find answer

(1-6a)(1-7a)=?

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Multiply and simplify the expression.

(5b-9)(5b+9)=?  

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Multiply the given expression geometrically.

(x+4)(x+2)=? (Needed answer.)

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Multiply to find the answer

7x(7x^2+2)=? (Simplify your answer.)

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Multiply and simplify

-3(6y+5)=? (Simplify your answer. Do not factor.)

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Subtract the polynomials

(x^3 y^2+6xy-(4x^3 y^2-5xy)=? What's the difference of the polynomial ? (Simplify your answer. Do not factor.)

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Subtract to find anwser

(3x+5)-(-4x+7)=? (simplify your answer.)

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Add the polynomials

(3p^3+3p^2-1)+(2p^3-3p+5)=? (Simplify your answer. Type your answer in standard form.)

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Determine rather the expression is a polynomial.

If it is, state how many terms and variables the polynomial contains. Than state its degree. 5x^2-3x-5=

04/26/13

Determine rather the expression is a polynomial.

If it is, state how many terms and variables the polynomial contains. Than state its degree.

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