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Lelu [443]
3 years ago
7

if a rectangle has am area of 2x²+11x+15, what would be an expression for the length, and for the width?

Mathematics
1 answer:
lozanna [386]3 years ago
3 0

Answer:

Length = 2x + 5

Width = x + 3

Step-by-step explanation:

Area of rectangle = length × width

Expression for area of the rectangle = 2x² + 11x + 15

Factorising the quadratic expression

2x² + 11x + 15 = 2x² + 6x + 5x + 15 = (2x² + 6x) + (5x + 15) = 2x(x + 3) +5(x + 3) = (2x + 5)(x + 3)

Length = 2x + 5

Width = x + 3

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Answer:

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Step-by-step explanation:

Given:

measure of ∠A = (2x + 2)°

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Using angles sum property

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