Question

12. Factorise: 2x²-7x-15​

Answer 1

Answer:

x=-3/2 , 5

Step-by-step explanation:

${2x}^{2} - 7x - 15 \\ {2x}^{2} - 10x + 3x - 15 \\ 2x(x - 5) + 3(x - 5) \\ (2x + 3)(x - 5) \\ x = \frac{ - 3}{2} \: and \: x = 5$

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Answer 2

Answer:

Step-by-step explanation:

2x²-10x+3x-15

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

(2x+3) (x-5)