8. (5x - 3)(x + 4)-(2x + 5)(3x - 4)
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Answered by
0
Step-by-step explanation:
(5x - 3)(x + 4)-(2x + 5)(3x - 4)
=5x²+20x-3x-12-[6x²-8x+15x-20]
=5x²+17x-12-6x²-7x+20
=-x²+10x+8
Answered by
0
Step-by-step explanation:
(5x-3)(x+4)-(2x+5)(3x-4)
5x2-3x+20x-12-(6x2+15x-8x-20)
5x2+17x-12-6x2-7x+20
-x2+10x+8
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