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Which of the binomials below is a factor of this trinomial?
6x^2- 5x - 25​

User Vimard
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1 Answer

3 votes

Answer:

see explanation

Explanation:

Given

6x² - 5x - 25

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

product = 6 × - 25 = - 150 and sum = - 5

The factors are + 10 and - 15

Use these factors to split the x- term

6x² + 10x - 15x - 25 ( factor the first/second and third/fourth terms )

= 2x(3x + 5) - 5(3x + 5) ← factor out (3x + 5)

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

The factors are (3x + 5) and (2x - 5)

User Gaa
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