Question

x square + 6xy + ysquare factorise using identities

Answer 1

(x²+2*3x*y)+y²

using identity

(a+b)²=a²+2ab+b²

here a=x and b=y

x²+6xy+y²

x²+(2*3x*y)+y²

(x+y)²

(x+y) (x+y)