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Find the area of a rectangle width 3x^2+6x-10 and length 3x+5

User Frevd
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1 Answer

5 votes

Answer: A = 9x³ + 33x² - 50

Explanation:

To find the area of this rectangle, we will use the formula for the area of a rectangle.

Given:

A = LW

Substitute:

A = (3x + 5)(3x² + 6x - 10)

Multiplying polynomials:

A = 3x * (3x² + 6x - 10) + 5 * (3x² + 6x - 10)

Multiply:

A = 9x³ + 18x² - 30x + 15x² + 30x - 50

Combine like terms with addition and subtraction:

A = 9x³ + 33x² - 50

User Mianos
by
8.5k points

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