Factorise Xsquare-4x+5
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x^2-4x-5
=x^2-5x+x-5
=x(x-5)+1(x-5)
=(x+1)(X-5)
:·x=-1 , x=5.
=x^2-5x+x-5
=x(x-5)+1(x-5)
=(x+1)(X-5)
:·x=-1 , x=5.
Anonymous:
dear 5 is in plus but u written in - by mistake ,just correct it..
rest of all is right
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