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CBSE Class 9 Answered

Please answer the question below in the image
question image
Asked by Girishdhawan | 15 Jun, 2018, 09:38: PM
answered-by-expert Expert Answer
4x2 - 4√7 x + 7 = 4x2 - 2√7 x - 2√7 x + 7 
                      = 2x (2x - √7) - √7 (2x - √7)
                      = (2x - √7) (2x - √7)
Answered by Sneha shidid | 18 Jun, 2018, 09:10: AM

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