Question

factorise by completing the square 4x2-12x+5​

Answer 1

4x^2-12x+5
4x^2-2x-10x+5
2x(2x-1)-5(2x-1)
(2x-5)(2x-1)
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Answer 2

Step-by-step explanation:

4x^2-12x+5

=4x^2-10x-2x+5

=2x(2x-5)-1(2x-5)

=(2x-5)(2x-1)

x=5/2 or x=1/2