2 years ago

The value of x² – 2yx + y² when x = 1, y = 2 is

Mathematics

2 answers:

Mrrafil [7]2 years ago

7 0

7
The process
1-2(2x1)+(2)^2

ki77a [65]2 years ago

5 0

$x^2 - 2xy +y^2 = (x-y)^2 = (1-2)^2 = (-1)^2 =1$

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