Question

For each expression, write an equivalent expression in expanded form.

Answer 1

Note that:

A(B + C) = AB + AC (Rule of distributivity)

For the given expressions:

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

-3(2x - 4) = -6x + 12

0.1(-90 + 50a) = -0.1(90) + 0.1(50a)

0.1(-90 + 50a) = -9 + 5a

-7(9 - x) = -7(9) -7(-x)

-7(9 - x) = -63 + 7x