What are the solutions of the equation x^2+4x+4=25

3 or −7. 
This equation is solved by taking the number infront of x (in this case an invisible 1) and the last number (4) and multiplying

4

then split that up so that the two numbers equal the middle number when added and the last number when multiplies

2 and 2

now use the Double Bubbles

(x + 2) (x + 2)

This may be re-written as (x+2)2=25.

So x+2=±5.

So x=3 or −7.

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.