Question

2
$2 {x }^{2} - 7x - 39$

Answer 1

2x^2 - 7x - 39
2x^2 - ( 13-6)x - 39
2x^2 - 13x + 6x - 39
x(2x - 13 ) + 3(2x - 13)
(x + 3)(2x-13)

x = -3
2x = 13
x = 13/2

Answer 2

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