Question

(-2x)3=

(2,4x) - ( -3,6x)=

(-5/4c2) x (-7/10c5)=

(-32x5): (+8x5)=

Answer 1

$(-2x)*3 => -6x \\ \\ (2,4x) - (-3,6x) => 2,4x + 3,6x = 6x \\ \\ (- \frac{5}{4} c^2) * (- \frac{7}{10}c^5 = 0,875c^ 7) \\ \\ ( \frac{-32x^5}{8x^5} ) => -4x^5$


$(3 y^2)*x (-1,8y^7) = - 5,4y^9$

$\frac{ \frac{3}{4} x^7*y^7}{ \frac{1}{4}*y^3 } => \frac{3x^7y^7}{y^3}$