Factorise it: 4x²-80x+400

1.	Factorise it: 4x²-80x+400
Answer» Hello Hii sanket 4x²-80x+400 = 0x2 - 20x + 100 = 0\xa0x2 - 10x - 10x + 100 =0x ( x - 10) - 10\xa0(x - 10) =0(x -10) (x - 10) = 0\xa0x - 10 = 0, x - 10 = 0x = 10 and x = 10

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