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(x+2) (x-4) use algebric identities solve |
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Answer» (x+a)(x+b)=x2+(a+b)x+abput this identity then you will get the answer x2 -2x-8 X²+(a+b)x+ab =x²+(2-4)x+2×4=x²+6x+8 X2 - 2x - 8 is rightMay this help you x² -4x +2x -8x² -2x -8 is correct answer |
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