Question

Solve for x: 25x^2 − 36 = 0

x = 6, 5

x = −6, −5

x = 36 over 25, x = − 36 over 25

x = 6 over 5, x = − 6 over 5

Answer 1

\(\large\color{black}{ \rm 25x^2 − 36 = 0 }\)
\(\large\color{black}{ \rm 25x^2 = 36 }\)
\(\large\color{black}{ \rm 5^2x^2 = 36 }\)
\(\large\color{black}{ \rm (5x)^2 = 36 }\)
\(\large\color{black}{ \rm (5x)^2 = (±6)^2 }\)
\(\large\color{black}{ \rm 5x = ±6 }\)
\(\large\color{black}{ \rm x = ±\frac{6}{5} }\)

Answer 2

thank you

Answer 3

Anytime !