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chigridovacaty
@chigridovacaty
July 2022
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Упростите выражение (a-1)^2(a+1)+(a+1)(a-1)и найдите его знначение при а=-3
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Banabanana
Verified answer
(a-1)
²
(a+1)+(a+1)(a-1)=(a-1)(a+1)(a-1+1)=(a
²-1
)a=a
³-a
при а=-3
(-3)³-(-3)=-27+3=-24
3 votes
Thanks 4
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Answers & Comments
Verified answer
(a-1)²(a+1)+(a+1)(a-1)=(a-1)(a+1)(a-1+1)=(a²-1)a=a³-aпри а=-3
(-3)³-(-3)=-27+3=-24