Question

Solve The Quadratic Equation by the Square Root Method.

(x + 2)^2=25

Answer 1

x=-7, x=3

Explanation:

Seperate into possible cases

Solve the equation

Answer 2

x = 3 or x = -7

Explanation:

(x + 2)^2=25

Take the square root of each side

sqrt((x + 2)^2)=sqrt(25)

x+2 = ± 5

Subtract 2 from each side

x+2-2 = -2 ±5

x = -2 +5 or x = -2 -5

x = 3 or x = -7