Question

how do you solve an equation by using square roots.

Answer 1

heres an example
solve for x:

(x - 3)^2 = 25

take the square root of both sides:

x - 3 = 5 or x - 3 = -5

these are easily solved

- don't forget there are 2 square roots positive and negative

Answer 2

ok thank you!! how would you solve one with an integer before the x^2 such as 4x^2 +4x+1=75

Answer 3

you need to factor 4x^2 +4x+1 to see if its a perfect square

it is in fact it equals

(2x + 1)^2

- now proceed as in first example

Answer 4

ok thank you!!