Question

$ab( {x}^{2} + 1) + x( {a}^{2} + {b}^{2} )$
factorise by grouping method friends please help me out of this question ​

Answer 1

aur kuch...................

Answer 2

$\huge\underline\frak{solution}$

$\implies\sf ab(x^2+1)+x(a^2+b^2)$

$\implies\sf abx^2+ab+a^2x+b^2x$

$\implies\sf abx^2+a^2x+b^2x+ab$

$\implies\sf ax(bx+a)+b(bx+a)$

$\implies\sf (ax+b)(bx+a)$