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DarkWep
@DarkWep
July 2022
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Упростите выражение!
1) ab3 - 9a³b
2) -25a + 10a² - a³
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oganesbagoyan
Verified answer
1)
ab³ -9a³b =ab(b² =9a²) =ab(b² -3a)²) =ab(b -3a) (b +3a) .
2)
-25a +10a² -a³ =
-(a³ -10a²+25a) = - a(a² -10a+25) =
- a(a² -2*a*5a+5²) =
-a(a-5)²
.
4 votes
Thanks 3
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Answers & Comments
Verified answer
1) ab³ -9a³b =ab(b² =9a²) =ab(b² -3a)²) =ab(b -3a) (b +3a) .2) -25a +10a² -a³ = -(a³ -10a²+25a) = - a(a² -10a+25) = - a(a² -2*a*5a+5²) =-a(a-5)².