Math, asked by rhitojadg, 5 months ago

if x-y=10/9 and xy = 5/3 find x^3-y^3

Answers

Answered by Anonymous
3

 \star\:\:{\underline {\blue{Hello!}}}

SOLUTION:

  • x - y =  \frac{10}{9}  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \\   =  >  {(x - y)}^{3}  =  ({ \frac{10}{9} })^{3}  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \\  =  >  {x}^{3}  -  {y}^{3}  - 3xy(x - y)  =   ({ \frac{10}{9} })^{3}   \:  \: \\   =  >  {x}^{3}  -  {y}^{3}  = ( { \frac{10}{9} )}^{3}  + 3 \times  \frac{5}{3}  \times  \frac{10}{9}  \\  =  >  {x}^{3}  -  {y}^{3}  =  \frac{5050}{729}  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:

///MARK IT BRAINLIEST///

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