A: (2x+3)(-4x+1+8-x)=(2x+3)(-5x+9)
B: (4-5X)(8x+1-7x+5)=(4-5x)(x+6)
c: (4+3x)(7-2x+2-7x)=(4+3x)(9-9x)
d:(9x-4)(2x+1+9x-4)=(9x-4)(11x-3)
e:(2x-9)(x-7+3)=(2x-9)(x-4)
f=(7x-1)(12-6x+5-x)=(7x-1)(-7x+17)
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A: (2x+3)(-4x+1+8-x)=(2x+3)(-5x+9)
B: (4-5X)(8x+1-7x+5)=(4-5x)(x+6)
c: (4+3x)(7-2x+2-7x)=(4+3x)(9-9x)
d:(9x-4)(2x+1+9x-4)=(9x-4)(11x-3)
e:(2x-9)(x-7+3)=(2x-9)(x-4)
f=(7x-1)(12-6x+5-x)=(7x-1)(-7x+17)