factorise 1-4x^2+4xy-y^2
Answers
Answered by
1
=1-((2x)^2+2×2x×y+(y)^2)
=(1)^2-(2x+y)^2
=(1+2x+y)(1-2x+y)
=(1)^2-(2x+y)^2
=(1+2x+y)(1-2x+y)
Similar questions