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irinakotik17
@irinakotik17
March 2022
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Нужно упростить выражение
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m11m
По действиям:
1)
1
=
1
x²-2xy+y² (x-y)²
2)
1
-
1
=
1
-
1
=
x+y-(x-y)
=
x+y-x+y
=
(x-y)² x²-y² (x-y)² (x-y)(x+y) (x-y)²(x+y) (x-y)²(x+y)
=
2y
(x-y)²(x+y)
3)
2y
:
2y
=
2y
*
x(y+x)
=
x
(x-y)²(x+y) xy+x² (x-y)²(x+y) 2y (x-y)²
1 votes
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Answers & Comments
1) 1 = 1
x²-2xy+y² (x-y)²
2) 1 - 1 = 1 - 1 = x+y-(x-y) = x+y-x+y =
(x-y)² x²-y² (x-y)² (x-y)(x+y) (x-y)²(x+y) (x-y)²(x+y)
= 2y
(x-y)²(x+y)
3) 2y : 2y = 2y * x(y+x) = x
(x-y)²(x+y) xy+x² (x-y)²(x+y) 2y (x-y)²