Question

x^2-100=0
Find the value of "x" ​

Answer 1

Answer:

x^2-100=0

therefore, x must be 10

Answer 2

Answer:

X^2-100=0

X^2-10^2=0

(since (a^2-b^2)=(a+b)(a-b)

(x+10)(x-10)=0

X=-10 (or) x=10