Question

solve the equation using factoring or by finding square roots x^2-49=0

Answer 1

The answer is (x+7)(x-7)

Answer 2

x^2=49
x=+7,-7 (two rots)

Answer 3

x^2 - 49 = 0

x^2 = 49

Take square root of both sides.

sqrt{x^2} = sqrt{49}

Answer: x = 7 and x = -7

When taking the square root, you will always get a positive and negative answer.

Answer 4

thank you