Question

-2x^2+7x+15 factorise​

Answer 1

Answer:

$- 2 {x}^{2} + 7x + 15 = 0 \\ = > - 2 {x}^{2} + 10x - 3x + 15 = 0 \\ = > - 2x(x - 5) - 3(x - 5) = 0 \\ = > ( - 2x - 3)(x - 5) = 0$

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Answer 2

Answer:

sum= -30

product =7

no:s are -3 and 10

-2$x^{2}$+10x-3x+15

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

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