Simplify:-(5x²+3x-7)(x-1)-(2x2 +3X-4)(2x-3)
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Q. (5x²+3x-7)(x-1)-(2x2+3x-4)(2x-3)
ans:- (5x²+3x-7)(x-1)-(4x+3x-4)(2x-3)
= {x(5x²+3x-7)-1(5x²+3x-7)} - {2x(4x+3x-4)-3(4x+3x-4)}
= {(5x³+3x²-7x)-(5x²+3x+7)} - {(8x²+6x²-8x)-(12x-9x+12)}
= {5x³+3x²-7x-5x²-3x-7} - {8x²+6x²-8x-12x+9x-12}
={5x³-5x²+3x²-3x-7x-7} - {8x²+6x²-8x-12x+9x-12}
= {5x³-2x²-10x-7} - {14x²-11x -12}
= 5x³-2x²-10x-7-14x²+11x+12
= 5x³-2x²-14x²-10x+11x-7+12
= 5x³-16x²+x+5 (ans)
I think this is the ans...
hope it helps u....
Answered by
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Step-by-step explanation:
(5x square +3x-7)(x-1)-(2xsquare +3x-4)(2x-3). {x(5xsquare +3x-7)-1(5xsquare+3x-7)}-{2x(2xsquare+3x-4-3(2xsquare +3x-4)}. (5xcube +3xsquare -7x-5xsquare-3x+14) -(4xcube +6xsquare+8x-6xsquare -9x+12). (5xcube +3xsquare -7x-5xsquare-3x +14)(-4xcube -6xsquare +8x+6x+9x-12). (5-4)xcube+(3-5-6+6)x+(-7-3+8)x+(14-12). xsquare-2xsquare +7x+2. ANSWER
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