Let's start with what we know:

And we are trying to put it into this form:

Here is what it would look like:

You can check you work by using the FOIL method (first, outer, inner, last)
Answer:
um15
Step-by-step explanation:
when it add and subtract is 15
Answer:
7) 3m + 21
8) 8t + 12
9) 45 + 30r
10) 32n - 16n or just 16n
Step-by-step explanation:
just use the distributive property
<em><u>Hope this helped! Have a nice day! Plz mark as brainliest!!!</u></em>
<em><u>-XxDeathshotxX</u></em>
Answer:
512
Step-by-step explanation:
the number of subsets of the set {1, 2, 3, ..., 9} is : 2^9 = 512
Answer:
36m
Step-by-step explanation:
The perimeter is given by
P = 2(l+w)
The length is 12 and the width is 6
P = 2(12+6)
P = 2(18)
P = 36