(-3x+4) (-4X-5)+ 4x = -20
(-5x + 2) (-5x - 2) + 4 x = -4.​

Summative Assessment for the cross curricular unit Flow SwiftKey

1)(-3x+4) (-4x-5)+ 4x = -20

12x^2+15x-16x+4x=0

12x^2+3x=0

x=0

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

25x^2-4+4x=-4

25x^2+4x=0

x=0