Question

ecuación 7x²-12=100 ???​

Answer 1

7x² - 12 = 100

7x² = 100 + 12

7x² = 112

x²  = 112/7

x² = 16

$\sqrt{x^{2} } = \sqrt{16}$

x = ± 4

CS = (-4 ; +4)

Eternamente axllxa