Question

factorise 10 x square - 9 x minus 7

Answer 1

$10x {}^{2} - 9x - 7$

$10x {}^{2} - 14x + 5x - 7$

$2x(5x - 7) + 1(5x - 7)$

$(2x + 1)(5x - 7)$


Thanks

Answer 2

your perfect answer