Question

Qual equação de 4×4-9×2+2=0

Answer 1

Explicação passo-a-passo:

$4x\cdot \:4-9x\cdot \:2+2=0\\\\\mathrm{Multiplicar\:os\:numeros:}\:4\cdot \:4=16\\16x-9\cdot \:2x+2=0\\\\\mathrm{Multiplicar\:os\:numeros:}\:9\cdot \:2=18\\16x-18x+2=0\\\\\mathrm{Somar\:elementos\:similares:}\:16x-18x=-2x\\-2x+2=0\\\\\mathrm{Subtrair\:}2\mathrm{\:de\:ambos\:os\:lados}\\-2x+2-2=0-2\\\\Simplificar\\-2x=-2\\\\\mathrm{Dividir\:ambos\:os\:lados\:por\:}-2\\\frac{-2x}{-2}=\frac{-2}{-2}\\\\\mathrm{Simplificar}\\x=1$