3x-3x+4x^2+8x=4x^2+8x
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8x + 6 = 3x - 4 8x = 3x - 4 - 6 8x = 3x - 10 8x - 3x = -10 5x = -10 5x/5 = -10 x = -10/5 x = -2
8x - 9 = 11x + 12 8x = 11x + 21 -3x = 21 x = -7
x=-6
(5x 2 - 8x + 1) + (2x 2 - 4x - 11)
This is how I did it:8x3+4x2+6x+3[8x3+4x2]+[6x+3][(4x2)(2x+1)]+[(3)(2x+1)]....as you can see, this is in the general form of ab+cb, which factored is b(a+c), so:(2x+1)(4x2+3)