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What are the factors of 2x^2+11x+15

User Breavyn
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1 Answer

6 votes

Answer:

(x + 3)(2x + 5)

Explanation:

Given

2x² + 11x + 15

Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term

product = 2 × 15 = 30 and sum = + 11

The factors are + 6 and + 5

Use these factors to split the x- term

2x² + 6x + 5x + 15 ( factor the first/second and third/fourth terms )

= 2x(x + 3) + 5(x + 3) ← factor out (x + 3) from each term

= (x + 3)(2x + 5)

User OzzyTheGiant
by
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