Find the value of Y in the given below question: Where,
2019-09-09 | Team PendulumEdu
If x−1x=7 then the value of Y=(7x2−7)(3x2+7x−3) is
Options:
A. 2/5
B. 7/4
C. 3
D. 9/2
Solution:
Consider the expression given in the question and simplify it, we get
=(7x2−7)(3x2+7x−3)
=7x(x−1x)x(3x+7−3x)
=7x(x−1x)x(3(x−1x)+7)
Substituting the given value of (x−1x) in the simplified expression, we get
\(=\frac{(7\times 7)}{(3\times
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