Question

r
$(20x -10 {x}^{2} ) \div ( - 5 \times )$
resolva:

Answer 1

Resposta:

$(20x -10 {x}^{2} ) \div (- 5\times)=\\\\\frac{20x-10x^{2}}{-5x}=\\\\\frac{20x}{-5x}+\frac{-10x^{2}}{-5x} =\\\\-4+2x=\\2x-4$