Factoring by Grouping Problems and Solutions

Grouping the terms in an expression is a method of factoring the expressions in mathematics. The following questions are the list of expressions with solutions to learn how to factorize or factorise the expressions by grouping with understandable steps.

Factorise $15xy-9x-25y+15$

Factorize $a(b^2-c^2)$ $+$ $b(c^2-a^2)$ $+$ $c(a^2-b^2)$