Question

dados os polinomios a seguir calcule A-B 5x +3y B=6x +3y+4​

Answer 1

Resposta:

$a-b 5x +3y b=6x +3y+4\\\\a-b\cdot \:5x+3yb-\left(a+3yb\right)=6x+3y+4-\left(a+3yb\right)\\\\-b\cdot \:5x=6x+3y+4-a-3by\\\\-b\cdot \:5x-6x=6x+3y+4-a-3by-6x\\\\-b\cdot \:5x-6x=3y+4-a-3by\\\\-x\left(5b+6\right)=3y+4-a-3by\\\\\frac{-x\left(5b+6\right)}{-\left(5b+6\right)}=\frac{3y}{-\left(5b+6\right)}+\frac{4}{-\left(5b+6\right)}-\frac{a}{-\left(5b+6\right)}-\frac{3by}{-\left(5b+6\right)};\quad \:b\ne \:-\frac{6}{5}\\\\=-\frac{3y+4-a-3by}{6+5b};\quad \:b\ne \:-\frac{6}{5}$