Math, asked by factohubz, 2 months ago

factorize 36/25x^4-y/16^4​

Answers

Answered by watermilon420
15

Answer: The answer is in the picture

Step-by-step explanation:

Attachments:
Answered by hukam0685
8

The factors of  \frac{36 {x}^{4} }{25}  -  \frac{ {y}^{4} }{16} \\ are \bf \red{ \left( { \frac{ \sqrt{6}  {x}}{ \sqrt{5} } } -  \frac{ {y}^{} }{2}  \right ) \left( { \frac{ \sqrt{6}  {x}}{ \sqrt{5} } }  +   \frac{ {y}^{} }{2}  \right )  \left( { \frac{6 {x}^{2} }{5} }  +   \frac{ {y}^{2} }{4}  \right )} \\

Given:

  • \frac{36 {x}^{4} }{25}  -  \frac{ {y}^{4} }{16}  \\

To find:

  • Find the factors of given polynomial.

Solution:

Identity to be used:

\bf {a}^{2}  -  {b}^{2}  = (a + b)(a - b) \\

Step 1:

Convert the given expression as in LHS of identity.

\frac{ {6}^{2}  {( {x}^{2}) }^{2} }{ {5}^{2} }  -  \frac{ { {(y}^{2}) }^{2} }{ {4}^{2} }  \\

or

 \left( { \frac{6 {x}^{2} }{5} } \right) ^{2}   - \left( { \frac{ {y}^{2} }{4} } \right) ^{2}   \\

here, it is clear that

\bf a =  \frac{6 {x}^{2} }{5}  \\

and

\bf b =  \frac{ {y}^{2} }{4}  \\

Step 2:

Apply identity to factorise.

 \frac{36 {x}^{4} }{25}  -  \frac{ {y}^{4} }{16}  =  \left( { \frac{6 {x}^{2} }{5} } -  \frac{ {y}^{2} }{4}  \right ) \left( { \frac{6 {x}^{2} }{5} }  +   \frac{ {y}^{2} }{4}  \right ) \\

again the same identity can be applied in the first factor.

 \frac{36 {x}^{4} }{25}  -  \frac{ {y}^{4} }{16}  =  \left( { \frac{ \sqrt{6}  {x}}{ \sqrt{5} } } -  \frac{ {y}^{} }{2}  \right ) \left( { \frac{ \sqrt{6}  {x}}{ \sqrt{5} } }  +   \frac{ {y}^{} }{2}  \right )  \left( { \frac{6 {x}^{2} }{5} }  +   \frac{ {y}^{2} }{4}  \right ) \\

Thus,

The factors of expression are

 \bf \red{\frac{36 {x}^{4} }{25}  -  \frac{ {y}^{4} }{16}  =  \left( { \frac{ \sqrt{6}  {x}}{ \sqrt{5} } } -  \frac{ {y}^{} }{2}  \right ) \left( { \frac{ \sqrt{6}  {x}}{ \sqrt{5} } }  +   \frac{ {y}^{} }{2}  \right )  \left( { \frac{6 {x}^{2} }{5} }  +   \frac{ {y}^{2} }{4}  \right )} \\

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Learn more:

1) (3x-4y)^2-(2x-3y)^2 find factorise

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2) 25(x+y)^2-36(x-2y)^2 factorise

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