CBSE Class 9 Answered
factorise x4+5x2+9 by identity a2-b2=(a+b)(a-b).
here 4,2 are the powers of this expression.
Asked by shubham0kumar24 | 30 May, 2019, 11:01: AM
Expert Answer
Answered by Renu Varma | 30 May, 2019, 11:15: AM
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