Question

-2(4+x)(5-x)
expand this

Answer 1

$- 2(4 + x)(5 - x)$

$- 2(20 - 4x + 5x - {x}^{2} )$

$- 2(20 + x - {x}^{2} )$

$- 40 - 2x + 2 {x}^{2}$

Answer 2

Answer:

2x2-2x-40

Step-by-step explanation:

-2(4+x)(5-x)

-2(20-4x+5x-x2)

-2(20+x-x2)

-40-2x+2x2

2x2-2x-40