Question

Raizes da função y=x2^+2x-35

Answer 1

Resposta:

Explicação passo-a-passo:

$y = x^{2} +2x +35\\Delta = b^{2} - 4ac\\D = 2^{2} -4.1.(-35)\\D = 4 + 140\\D = 144\\\\x_{1} =\frac{2-12}{2} = -5\\\\x_{1} =\frac{2+12}{2} = 7\\\\raizes (-5; 7)$