(3x-5/x) (9x^2+15+25/x^2)
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0
Answer:
SOLUTION
TO SIMPLIFY
\displaystyle \sf{ \bigg( 3x - \frac{5}{x} \bigg) \bigg(9 {x}^{2} + 15 + \frac{25}{ {x}^{2} } \bigg)}(3x−
x
5
)(9x
2
+15+
x
2
25
)
FORMULA TO BE IMPLEMENTED
We are aware of the formula that
a³ - b³ = (a - b)(a² + ab + b² )
EVALUATION
\displaystyle \sf{ \bigg( 3x - \frac{5}{x} \bigg) \bigg(9 {x}^{2} + 15 + \frac{25}{ {x}^{2} } \bigg)}(3x−
x
5
)(9x
2
+15+
x
2
25
)
\displaystyle \sf{ = {(3x)}^{3} - { \bigg(\frac{5}{x} \bigg)}^{3} }=(3x)
3
−(
x
5
)
3
\displaystyle \sf{ = 27 {x}^{3} - \frac{125}{ {x}^{3} } }=27x
3
−
x
3
125
Step-by-step explanation:
Hope it's helpful
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Answered by
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Step-by-step explanation:
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