-3x(2 - x) + (3x + 1)(x - 2) = -6x + 3x^2 + 3x - 6 + x - 2 = 3x^2 - 2x - 8
3(2x - 1)2 + 12x 2 = 6(2x - 1) + 24x = 12x - 6 + 24x = 36x - 6
2(x + 3)2 - (x - 2)(x + 2) 2 = 8(x + 3) - 2(x^2 + 2x - 2) = 8x + 24 - 2x^2 - 4x + 4 = -2x^2 + 4x + 28
-3x(2 - x) + (3x + 1)(x - 2)
= -6x + 3x^2 + 3x - 6 + x - 2
= 3x^2 - 2x - 8
3(2x - 1)2 + 12x 2
= 6(2x - 1) + 24x
= 12x - 6 + 24x
= 36x - 6
2(x + 3)2 - (x - 2)(x + 2) 2
= 8(x + 3) - 2(x^2 + 2x - 2)
= 8x + 24 - 2x^2 - 4x + 4
= -2x^2 + 4x + 28