Question

equação do segundo grau incompleta

a) 2x²+32x=0

B) 3x²-27x=0​

Answer 1

$\large\boxed{\begin{array}{l}\sf a)\\\rm 2x^2+32x=0\\\rm 2x\cdot(x+16)=0\\\rm 2x=0\\\rm x=\dfrac{0}{2}\\\\\rm x=0\\\rm x+16=0\\\rm x=-16\\\rm S=\{-16,0\}\end{array}}$

$\large\boxed{\begin{array}{l}\sf b)\\\rm 3x^2-27x=0\\\rm 3x\cdot(x-9)=0\\\rm 3x=0\\\rm x=\dfrac{0}{3}\\\\\rm x=0\\\rm x-9=0\\\ x=9\\\rm S=\{9,0\}\end{array}}$

Answer 2

Resposta:

A) 2x²+32x=0

S={0,-16}

B) 3x²-27x=0

S={0,+6}

Explicação passo a passo: