Раскройте скобки а)(3х²-у2)²
б)(-4а³+0,5b)²
Выполните умножение:
(х+5)(х²-5х+25)
Найдите значение выражения:
(3х+4)(9х²-12х+16)-64-3(3х-1)(3+1)+х2 при х=1
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