Question

Simplify using suitable properties. a. (-4) x (-1) x75 x (-25) b. (-16) x (–8) + (-4) x (-8)

Answer 1

Answer:

$a. -4*-1*75*-25\\=4*-25*75\\=-100*75\\=-7500$

$b. 16*(-8)+4*(-8)\\=(-16+-4)(-8)\\=(-20)(-8)\\=160$

In 1st one associative prop is used and in second one distributive prop of multipilicaton over addition is used