I have this problem on my homework and I wrote that the answer was +/-5 because -(+5)=-5 and -(-5)=+5. Was marked wrong and told the answer is -5. Why?

I have this problem on my homework and I wrote that the answer was +/-5 because -(+5)=-5 and -(-5)=+5. Was marked wrong and told the answer is -5. Why?

Approximate square root 31 with a decimal to the nearest hundredth. How does the square of that approximation compared to 31?

The square root of x+√(x^2-y^2) Options: 1. 1/2 ×√(x+y)+√(x-y) 2. √(x+y)+√(x-y)

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...

Can someone help me solve this Quadratic Equation by square root? If you could do it step-by-step I would appreciate but if it's too much work then it's okay, just don't bother. 3x² +...

I need help with these, if someone could explain them step-by-step, I would really appreciate it :) 1. 3x² - 48 = 0 2. x² = 36 3. p² - 50 = 0

a. $3,049.20 b. $3,045.20 c. $3,094.20 d. $3,054.20 1 acre = 660 feet x 66 feet

solve by the square root property X^2=-100

Any help would be appreciated.

( x + 6)2 = 20

Square root of 8x multiplied by square root of 2x equals to 144.find the value of xa

Square root of 64w^6

√c = 20

√c = 16

√c = 20

I don't know the answer( honestly) I need help please. Thank you!

Q. Solve using the quadratic formula: y = 3x² + 10x + 4 (-5 ± sqrt(22)) / 3 (10 ± i sqrt(38)) / 6 (-10 ± 13 sqrt(4)) / 6 (5 ± sqrt(12)) / 3 (-5 ± sqrt(13))...

solve the equation: the square root of x+2 - the square root of 2x+3 = -1

what are the solutions to the equation: the square root of x+5 + the square root of x-5 = 10

HELP!!!!!!!! I dont know where to start. solve for x