Question

Factorise ab (x²+1) + x(a²+b²). ​

Answer 1

Answer:

ab(x

2

+1)+x(a

2

+b

2

)

=abx

2

+ab+a

2

x+b

2

x

=abx

2

+a

2

x+ab+b

2

x

=ax(bx+a)+b(bx+a)

=(bx+a)(ax+b)