Question

rezolvati ecuatia 2 x la puterea a doua egal cu 8​

Answer 1

Răspuns:

$2 \times {x}^{2} = 8 \\ {x}^{2} = 8 \div 2 = 4 \\ x = + - \sqrt{4} \\ x = + - 2$

Answer 2

Răspuns:

2•x^2=8

x^2=8:2=4

x=+-rad4

x=+-2