Question

Pls give the solution of 1 and 2

Answer 1

$5 {x}^{2} - 8x - 4 \\ 5 {x}^{2} - (10 - 2)x - 4 \\ 5 {x}^{2} - 10x + 2x - 4 \\ 5x(x - 2) + 2(x - 2) \\ (x - 2)(5x + 2) \\ \\ {x}^{2} - 20x + 91 \\ {x}^{2} - (13x + 7x) + 91 \\ {x }^{2} - 13x - 7x + 91 \\ x(x - 13) - 7(x - 13) \\ (x - 13)(x - 7)$
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