2 years ago

Which of the following is a factor of 2x^2–7x–15 2x–3 x–5 2x–5 x–3

Mathematics

1 answer:

Andreas93 [3]2 years ago

4 0

double bracket factorisation

2 × 15 = 30

find two factors of 30 that add to give -7

(-10, +3)

2x^2 -10x + 3x - 15

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

(2x+3) (x-5)

THE ANSWER IS X-5

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