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Persi24
@Persi24
July 2022
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Разложите на множители:
1)b²-16
2)25a²-81y²
3)x²-6x+9
4)4y³-y
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Answers & Comments
555Maura555
1. b²-16 = (b - 4)*(b+4)
2. 25a²-81y² = (5a - 9y)*(5a+ 9y)
3. x²-6x+9 = (x - 3)²
4. 4y³-y = y ( 4y² - 1) = y(2y - 1)*(2y+1)
1 votes
Thanks 7
ilyaputyrsky
1)b2-16=(b-4)(b+4)
2)25a2-81y2=(5a-9y)(5a+9y)
3)x2-6x+9=(x-3)(x-3)=(x-3)2
4)4y3-y=y(4y2-1)=y(2y-1)(2y+1)
2 votes
Thanks 4
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Answers & Comments
2. 25a²-81y² = (5a - 9y)*(5a+ 9y)
3. x²-6x+9 = (x - 3)²
4. 4y³-y = y ( 4y² - 1) = y(2y - 1)*(2y+1)
2)25a2-81y2=(5a-9y)(5a+9y)
3)x2-6x+9=(x-3)(x-3)=(x-3)2
4)4y3-y=y(4y2-1)=y(2y-1)(2y+1)