CBSE Class 9 Answered
Factorisation
Asked by rajat951 | 22 Sep, 2009, 09:55: PM
Expert Answer
7x2 + 2√14x + 2 = 7x2 + 2√(7x2)x + 2
=7x2 + 2√7√2x + 2
=(√7x)2 + 2√7√2x + (√2)2
= (√7x + √2)2 = (√7x + √2)(√7x + √2)........................Answer
40x7y2 - 135x4y5
= 5x4y2(8x3 - 27y3)
Using a3 - b3 = (a - b)(a2 + ab + b2)
= 5x4y2(2x - 3y)(4x2 + 6xy + 9y2) ...............................Answer
Regards,
Team,
TopperLearning.
Answered by | 25 Sep, 2009, 03:49: PM
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