Question

Solve (x+1)(x+2)(x+3)(x+4) is equal to120​

Answer 1

This is a short trick. :D

See whenever you receive these type of questions, never multiply or open the brackets. It is very time consuming.

Find the factors of the number by division method and arrange those factors in consecutive increasing or decreasing order and then arrange the factors given in the question and compare you and questions factors. You will surely get the answer. Ask if you don't understand. :)