Question

X²+2x-35=0


Ajuda rPido

Answer 1

Fórmula de Bhaskara: $\frac{ -b ^{+} _{-} \sqrt{b^{2} - 4ac} } {2a}$

Substituindo: $\frac{ -2 ^{+} _{-} \sqrt{2^{2} - 4*(-35)} } {2}$

$\frac{ -2 ^{+} _{-} \sqrt{4 +140} } {2}$

$\frac{ -2 ^{+} _{-} \sqrt{144} } {2}$

$\frac{ -2 ^{+} _{-} 12 } {2}$

$x_{1} = \frac{ -2 + 12 } {2}$'

$x_{1} =5$

$x_{2} = \frac{ -2 - 12 } {2}$

$x_{2} = -7$