If 2x-3/x=5 than find value of 4x^2-9/x^2 =?
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Answer:
Step-by-step explanation:
2x - \frac{3}{x} = 5 = >2x−
x
3
=5=>
on squaring on both sides , we get
{(2x - \frac{3}{x})}^{2} = 25 = > 4 {x}^{2} + \frac{9}{ {x}^{2} } -(2x−
x
3
)
2
=25=>4x
2
+
x
2
9
−
2 \times 2x \times \frac{3}{x} = 25 = > 4 {x}^{2} + \frac{9}{ {x}^{2}} - 12 =2×2x×
x
3
=25=>4x
2
+
x
2
9
−12=
25 = > 4 {x}^{2} + \frac{9}{ {x}^{2}} = 25 + 12 = 3725=>4x
2
+
x
2
9
=25+12=37
Hope it helps you.
Step-by-step explanation:
thanks my answer
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