Math, asked by vishalpaul7734, 11 months ago

Find the value of 27xcube + 8ycube if 3x+2yis equal to 20 and xyis equal to 14/9

Answers

Answered by sehaj118

0

Answer:

(3x+2y)cube=27xcube+8ycube+3×3x×2y

(3x+2y)

20cube =27xcube+8ycube+18xy(20)

8000 = 27xcube+8ycube+18×14/9×20

8000 = 27xcube+8ycube+2×280

8000-560 = 27xcube+8ycube

therefore 27xcube+8ycube = 7440

Previous Question

Next Question

Similar questions

Science, 5 months ago

C. Give one word answer. 1. Vaporization from the surface of a liquid. 2. The process by which salt is obtained from sea water. 3. A reddish-brown substance which gets deposited on scrap iron when left in moist air. 4. The metal which gets deposited on shiny iron nails when dipped in the solution of copper sulphate. 5. A solution in which no more solute can be added. 6. The coating of an iron...

Social Sciences, 5 months ago

38 degrees below freezing Celsius can be written as __________ °c...

Business Studies, 5 months ago

Cll is an example of ___________ . *...

English, 11 months ago

my first day in school 7th class essay...

Environmental Sciences, 11 months ago

Explain four contributory factors to social problem locally and globally...

Hindi, 1 year ago

bharat ki pahli film ka pahla song...

Math, 1 year ago

the sides of a tringle are 3cm,4cm, and 6cm.Determine if its right angled tringle.

Math, 1 year ago

compute 52/3 - 3 1/4...