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CBSE Class 10 Answered

4 x squared plus 4 b x minus left parenthesis a squared minus b squared right parenthesis equals 0
Asked by deorajsahoo143 | 27 Jan, 2020, 06:55: PM
answered-by-expert Expert Answer
To factorise 4x2+4bx-(a2-b2)
4 x squared plus 4 b x minus open parentheses a squared minus b squared close parentheses equals open parentheses 2 x close parentheses squared plus 2 times 2 x times b minus a squared plus b squared equals open square brackets open parentheses 2 x close parentheses squared plus 2 times 2 x times b plus b squared close square brackets minus a squared equals open parentheses 2 x plus b close parentheses squared minus a squared U sin g space t h e space i d e n t i t y space a squared minus b squared equals open parentheses a plus b close parentheses open parentheses a minus b close parentheses comma space w e space h a v e open parentheses 2 x plus b close parentheses squared minus a squared equals open parentheses 2 x plus b plus a close parentheses open parentheses 2 x plus b minus a close parentheses H e n c e comma space 4 x squared plus 4 b x minus open parentheses a squared minus b squared close parentheses equals open parentheses 2 x plus b plus a close parentheses open parentheses 2 x plus b minus a close parentheses
Answered by Renu Varma | 28 Jan, 2020, 10:25: AM

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