Question

x²+5=30
4x²-56=200
8x²=32 ayuda ​

Answer 1

x² + 5 = 30

x² = 30 - 5

x² = 25

$\sqrt{\geq } = \sqrt{25}$

x = ± 5

4x² - 56=200

4x² =  200 + 56

4x² =  256

x²  = 256/4

x² = 64

√x²  = √64

x = ± 8

8x² = 32

x²  = 32/8

x² = 4

√x² = √4

x = ± 2

Eternamente axllxa