Apply distributive property: 5(2 + x) *
10 points
10 + x
10 + 5x

The answer is 10 + 5x.

Step-by-step explanation:

Expand by distributing term.

Simplify 5 × 2 to 10.

Therefor, the answer is 10 + 5x.

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb