CBSE Class 10 Answered
Step 1: Find the product ac.
Step 2: Find the factors of ac that add to up to b, using the following criteria:
(i) If ac>0 and b>0, then both factors are positive
(ii) If ac>0 and b<0, then both factors are negative
(iii) If ac<0 and b>0, then larger factor is positive and smaller factor is negative.
(iv) If ac<0 and b<0, then larger factor is negative and smaller factor is positive
Step 3: Split the middle term into two parts using the factors obtained in the above step.
Step 4: Factorise the quadratic equation obtained in the above step by grouping method. Two factors will be obtained.
Step 5: Put the linear factors equal to zero to get the value of x.