Factor 2x^2 + 13x +15 5x ^2 + 21x + 4 7x^2 - 59x + 24

asked Jun 15, 2021 99.1k views

5 votes

Factor
2x^2 + 13x +15

5x ^2 + 21x + 4

7x^2 - 59x + 24

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5 votes

Answer:

$2 {x}^(2) + 13x + 15 \\ 2 {x}^(2) + 10x + 3x + 15 \\ 2x(x + 5) + 3(x + 5) \\ (2x + 3)(x +5 )$

$5 {x}^(2) + 21x + 4 \\ 5 {x}^(2) + 20x + 1x + 4 \\ 5x(x + 4) + 1(x + 4) \\ = (5x + 1)(x + 4)$

$7 {x}^(2) - 59x + 24 \\ 7 {x}^(2) - 56x - 3x + 24 \\ 7x(x - 8) - 3(x - 8) \\ = (7x - 3)(x - 8)$

BNd answered Jun 19, 2021

by BNd

4.7k points

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