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Маша00081
@Маша00081
August 2022
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упростите выражения:
(2х-1)²
(2+3в)²
(х³-3)²
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Answers & Comments
Kixcertborn2
Verified answer
(2х-1)²=(2x)^2-2*2x*1+1^2=4x^2-4x+1
===============================
(2+3b)²=2^2+2*2*3b+(3b)^2=4+12b+9b^2
===============================
(х³-3)²=(x^3)^2-2x^3*2+2^2=x^6-4x^3+4
===============================
1 votes
Thanks 1
dadly2017
(2x-1)^2=4x^2-4x+1
(2+3b)^2=4+12b+9b^2
(x^3-3)=x^9-6x^3+9
0 votes
Thanks 1
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Answers & Comments
Verified answer
(2х-1)²=(2x)^2-2*2x*1+1^2=4x^2-4x+1===============================
(2+3b)²=2^2+2*2*3b+(3b)^2=4+12b+9b^2
===============================
(х³-3)²=(x^3)^2-2x^3*2+2^2=x^6-4x^3+4
===============================
(2+3b)^2=4+12b+9b^2
(x^3-3)=x^9-6x^3+9