Question

(9 x+10x-8x+10)(4x+5x-3)
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Answer 1

Explicación paso a paso:

(9x + 10x - 8x + 10) (4x + 5x - 3)

$= 36 {x}^{2} + 45 {x}^{2} - 27x + 40 {x}^{2} + 50 {x}^{2} - 30x - 32 {x}^{2} - 40 {x}^{2} + 24x + 40x + 50x - 30$

$= (36 {x}^{2} + 45 {x}^{2} + 40 {x}^{2} + 50 {x}^{2} - 32 {x}^{2} - 40 {x}^{2} ) + ( - 27x - 30x + 24x + 40x + 50x) - 30$

$= 99 {x}^{2} + 57x - 30$

$= x(99x + 57) - 30$