how to factorise x²-4x+4
Answers
Answered by
29
X²-4X+4
X²-2X-2X+4
X(X-2) - 2(X-2)
(X-2)(X-2)
X -2 = 0. or X-2 = 0
X = 2 or X = 2
it means X = 2
X²-2X-2X+4
X(X-2) - 2(X-2)
(X-2)(X-2)
X -2 = 0. or X-2 = 0
X = 2 or X = 2
it means X = 2
chintu137:
yeah superb
Answered by
16
x²-(2+2)x+4
x ²-2x-2x+4
x(x-2)-2(x-2)
(x-2)(x-2)
(x-2)²
x-2=0
x=2
x ²-2x-2x+4
x(x-2)-2(x-2)
(x-2)(x-2)
(x-2)²
x-2=0
x=2
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