5k3-3k+7-(-2k3+k2-9)
basically rewrite with simple algebra principles
15k-3k+7-(-6k+2k-9)
split up the parenthesis
15k-3k+7+6k-2k+9
sort them
15k-3k+6k-3k+7+9
short down by adding up the similar factors
answer: 18k+18
factorise
18(k+1)
both forms are right
Answer:
14mn
Step-by-step explanation:
Answer:
Arithmetic.
Step-by-step explanation:
Geometric sequences have common ratios. Arithmetic sequences have common differences.
Answer:
1 and 1/4 of a mile each week
Step-by-step explanation:
