4 left(x 7 right) le 4 left(2x 8 right) July 8, 2019 16 32 64 128 3 left( 1 - x right) + 5 left( x + 2 right) = 1 - 4x Left(-7x^ 4 right)^ 2 2 left(x+1 right)+4 left(x-7 right) Left(-7x^ 2 right) left(4x right)(−7x2)(4x)