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димонgdv
@димонgdv
August 2022
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Упростить выражение: 1) (x+5)²-(x-4)(x+4)+(x-3)(x+7). 2) (1-a)(1+a)(1+a²)-(a+3)(a²-3a+9)
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Mary2111
Х²+10х+25-х²-4х+16+4х+х²+7х-21-3х= х²+14х+20
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Alena0303031
Ваши выражения решены:
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