Question

9x elevado ao quadrado -16=0

Answer 1

9x²-16=0
9x²=16
x²=16/9
x²=1.77
x=raiz de 1.77
x= 1.33

Answer 2

 9x²-16= 0
9x²= 0+16
9x²= 16
√ 9x² = √ 16
3x=4