ICSE Class 9 Answered
solve: a^3-a-120
Asked by laxmi.agarwal055 | 21 Feb, 2018, 06:51: PM
Expert Answer
when we put a=5 it becomes zero
so (a-5) is a factor
now divide a3-a-120 by a-5 to get other factor and factorise ( quadratic equation )
Answered by Arun | 21 Feb, 2018, 07:20: PM
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