Question

Resolva as equação
2×sobre dois -49=0

Answer 1

Resposta:

7

Passo a passo:

$x^{2} -49=0\\x^2=+49\\x=\sqrt49\\x=7$

Answer 2

2x^2 - 49 = 0
2x^2 = 49
X^2 = 49/2
X = \/(49/2)
X = \/49 / \/2
X = 7 / \/2. \/2 / \/2
X = 7.\/2 / 2

S = { +7\/2 /2; - 7\/2 / 2}