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5 votes
How to you do question 6?

How to you do question 6?-example-1
User Aatwo
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1 Answer

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Well, it's fairly straightforward! The area of the whole rectangle is (a+2)*a, while the area of the unshaded rectangle is (a-3)*6. So the area of the shaded region is (a+2)*a - (a-3)*6 =
a^(2) - 4a + 18
User Pax Vobiscum
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