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balu736 [363]
3 years ago
10

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]3 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)

<em><u>(</u></em><em><u>2x</u></em><em><u>+</u></em><em><u>3</u></em><em><u>)</u></em><em><u> </u></em><em><u>(</u></em><em><u>x-5</u></em><em><u>)</u></em>

<em><u>THE</u></em><em><u> </u></em><em><u>ANSWER</u></em><em><u> </u></em><em><u>IS</u></em><em><u> </u></em><em><u>X-5</u></em>

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