Measurement = 10 + 10 + 9
= 29cm
Pleaseee tell me if im right!! I already solved and my answer is 84 square units, but im not sure.. pleaseee help me
2 answers:
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Answer:
Step-by-step explanation:
The given expression is .
We expand to obtain:
.
We apply the distributive property to get:
.
Group and combine the like terms;
.
.
This polynomial expression is in standard form because it is descending powers of x.