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A rectangle has a height of 7x2 and a width of 3x2 + 8x + 7. Express the area of the entire rectangle. Your answer should be a polynomial in standard form. 7x² Area = 3x² + 8x + 7
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3 votes
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A rectangle has a height of 7x2 and a width of 3x2 + 8x + 7.

Express the area of the entire rectangle.
Your answer should be a polynomial in standard form.
7x²
Area =
3x²
+
8x
+ 7

User Arsh Singh
by
2.4k points

1 Answer

19 votes
19 votes

Answer:


21x^4+56x^3+49x^2

Explanation:


A=hw \\ \\ =(7x^2)(3x^2+8x+7) \\ \\ =21x^4+56x^3+49x^2

User Kstepien
by
3.2k points
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