The equation shown below involves a perfect square trinomial.

4x2 + 20x + 25 = 7

Which of the following is a step in solving this equation?

A. Subtract 25 from both sides
B. Divide both sides by 4
C. Square both sides
D. Take the square root of both sides

Question

The equation shown below involves a perfect square trinomial. 

4x2 + 20x + 25 = 7 

Which of the following is a step in solving this equation?

 		A.	Subtract 25 from both sides
 		B.	Divide both sides by 4
 		C.	Square both sides
 		D.	Take the square root of both sides

jhonyy9 · Answer

do you know what mean a perfect square ?

anonymous · Answer

its D

jhonyy9 · Answer

why its D ?

anonymous · Answer

idk

jhonyy9 · Answer

so the first step will be add to both sides (-7) looke what will get so ?

jhonyy9 · Answer

you need to do this for you get on the right side zero