9x2 -48x +64=
A. x+8
B.x-8
C.3x+8
D.3x-8
9x2
Is 9xsquare
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Answer:
(i) L.H.S = (3x+ 7)2 84x
= (3x)2+ 2(3x)(7) + (7)2 84x
= 9x2+ 42x+ 49 84x
= 9x2 42x+ 49
R.H.S = (3x 7)2= (3x)2 2(3x)(7) +(7)2
= 9x2 42x+ 49
L.H.S = R.H.S
in the above ques 9x^2 49 are simplified in the RHS but where is 49x....????
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