factorise (x+2)^2-25(x-2)(y+1)+12(y+1)^2
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(x+2)^2=x^2+4x+4
-25 (x-2)=-25x+100
-25 (y+1)=-25y-25
12 (y+1)^2=12 (y^2+2y+1)=12y^2+24y+12
=x^2+4x+4-25x+100-25y-25+12y^2+24y+12
=x^2-21x+104-y-13+12y^2
The equation is.
=x^2-21x+104-y-13+12y^2
I hope it will help for u ☺.
-25 (x-2)=-25x+100
-25 (y+1)=-25y-25
12 (y+1)^2=12 (y^2+2y+1)=12y^2+24y+12
=x^2+4x+4-25x+100-25y-25+12y^2+24y+12
=x^2-21x+104-y-13+12y^2
The equation is.
=x^2-21x+104-y-13+12y^2
I hope it will help for u ☺.
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