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Using suitable identiti (x+7) (x+3) |
Answer» Given -[x+7] [x+3] FORMULAE USED -[x+a][x+b] is x^2+xa+xb+ab x^2+x[a+b]+ab Solution-[x+7] [x+3] x^2+7x+3x+21 x^2 +x[7+3]+21 x^2+x[10] +21 x^2+10x+21 |
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