Question

8 x ao quadrado - 8 = 0 ??

Answer 1

8x² - 8 = 0
8x² = 8
x² = 8:8
x² = 1
x = ±√1
x = 1

Answer 2

8x²-8=0
8x²-8
x²=8/8
x²=1
x=$\sqrt1$
x=1