Question

SOLVE EQUATION BY TAKING SQUARE ROOTS.
-100+81a^2=0

Answer 1

GOOD MORNING AND CONGRATULATIONS ON YOU GRADUATING :D

Answer 2

a = ±10/9

Explanation:

`-100+81a^2=0\\81a^2=100\\a^2=(100)/(81)\\√(a^2)=\sqrt{(100)/(81) }\\a=10/9\\a=-10/9`