ICSE Class 9 Answered
9xsquare-4(y+2x)square
Asked by Vidhi Srivastava | 03 May, 2013, 09:35: PM
Expert Answer
9xsquare-4(y+2x)square = 0
[3x]^2-[2(y+2x)]^2 =0
Using a^2 - b^2 = (a-b)(a+b)
Hence, (3x-2y-4x) (3x+2y+4x) =0
(-2y-x)(2y+7x) = 0
Hence, y = -x/2 or y = -7x/2
Answered by | 04 May, 2013, 03:47: AM
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