Math, asked by nitinshahidbx, 4 months ago

find the expansion of (7 - y)^3

Answers

Answered by karthikey9

0

formula =a^3 - b^3 - 3(ab) ( a-b)

SOLUTION

= 7^3 - y^3 - 3( 7 )( y ) ( 7 - y )

= 343 - y^3 - ( 21y ) ( 7-y)

= 343 - y^3 - 141y - 21y^2

⇒ y^3 + 21y^2 + 141y - 343 = 0

hope it helps

Previous Question

Next Question

Similar questions

Math, 2 months ago

(a) 4. In a class test of Science, (+3) marks are given for every correct answer and (-2) marks are given for en wrong answer and no marks for not attempting the question, Rahul scores 20 marks. If he has got. correct answer, how many questions has he attempted wrongly?

English, 2 months ago

i live in india change into negative...

Physics, 2 months ago

Two resistors of resistances 3Ω and 6Ω respectively are connected to a battery of 6V so as to have: maximum resistance and maximum current. Suggest the probable method of resistor combination and the corresponding current that will flow through the circuit.

Math, 4 months ago

which colour of sparkle pen is used on sky blue sheet ??

Math, 4 months ago

subtract the sum of $\frac{ - 36}{11}$ and $\frac{49}{22}$ from sum of $\frac{33}{8}$ and $\frac{ - 19}{4}$ ...

Computer Science, 10 months ago

differentiate between : 1.Not able to take desion and zero IQ.. 2.Cu and Mu this is the question of computer .. any one please answer this question..Please answer this fast..anyone Plzz help me to answer this...

CBSE BOARD X, 10 months ago

Diploma next forest department jobs or course...

Math, 10 months ago

Two rolls of films plus 4 batteries cost $13.60 while 5 rolls of film plus 6 batteries cost$30.80. Find the cost of 1 roll of film and 1 battery.