Question

Упростите выражение а) (-0,2y)³·50y²​

Answer 1

Ответ:

$( - 0.2y) {}^{3} \times 50y {}^{2} = - (0.2 {}^{3}y ) \times 50y {}^{2} = - 0.2 {}^{3} \times {y}^{3} \times 50y {}^{2} = - ( \frac{1}{5} ) {}^{3} \times {y}^{3} \times 50 {y}^{2} = - \frac{1}{125} y {}^{3} \times 50y {}^{2} = - \frac{1}{5} {y}^{3} \times 2y {}^{2} = - \frac{2}{5} y {}^{5} = - 0.4y {}^{5}$