Question

me ajudem matéria :resolvendo equações do tipo ax² + c=0

a) x²- 45=121

Answer 1

x²= 121+45
x² = 166
x = +- √166
x ≈ 12,8

Answer 2

$a)\ x^2-45=121\\\\x^2=121+45\\\\x^2=166\\\\x=\pm\sqrt{166}\\\\S=\{-\sqrt{166},\sqrt{166}\}$