Question

a) 2x2 – 10 = -2
b)=x² + 5 = 0
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Answer 1

Resposta:

Explicação passo-a-passo:

a)2x²-10=-2

2x²=8

x²=4

x=2

b)x²=-5

x=-raiz de5

Answer 2

$a)2x {}^{2} = - 2 + 10$

$2x {}^{2} = 8$

$x {}^{2} = \frac{8}{2} = 4$

$x = \sqrt{4}$

x= 2

$x {}^{2} = - 5$

x = -√5