Question

Solve the equation x2 − 100 = 0.

Answer 1

Difference of squares. I see.

Answer 2

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

Answer 3

is it 10 , -10 ?

Answer 4

\( \color{Red}{\Rightarrow a^2 - b^2 = (a + b)( a- b) \Longrightarrow \color{Black}{x^2 - 10^2 = .....} }\)

Answer 5

Yes, it's (10,-10)