Question

1) simplify :
(x+9) (x-2) +(x+6) (x-3)
(x+4) (x+7)+ (x+8) (x+5)

Answer 1

$\\ (x {}^{2} + 7x - 18 )+ ( {x}^{2} + 3x - 18) \\ this \: expression \: boils \: down \: to \\ = 2 {x}^{2} + 10x - 36.....$
the second part of it is (please refer to the photo)

Answer 2

xsquare+
$x { }^{2} + 18x - 18 + {x}^{2} + 12x - 18$
${x}^{2}$
this will be cancelleed and we will get the anser 1.2