Binomial Multiplication

12 questions. 3 minutes.
1
(-6x+8)(-7x+2) =
x² + x +
2
(8x+5)(-x+4) =
x² + x +
3
(-3x+1)(-2x+5) =
x² + x +
4
(7x+5)(-8x+8) =
x² + x +
5
(-x-4)(-7x+9) =
x² + x +
6
(-4x-6)(5x+5) =
x² + x +
7
(x+6)(6x+2) =
x² + x +
8
(x+4)(2x-9) =
x² + x +
9
(x-5)(-8x+2) =
x² + x +
10
(-x-2)(7x+2) =
x² + x +
11
(7x-8)(-7x-8) =
x² + x +
12
(7x+4)(-6x-5) =
x² + x +