Question

Factorise 2xsquare-7x-15

Answer 1

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

Answer 2

hey sakshi here

2x2 - 7x -15            =           0

2x2 - 10x + 3x -15  =           0

2x(x-5) + 3(x-5)      =           0

(x-5) (2x+3)             =            0

x = 5 or x = -3/2

hope it help

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