Math, asked by khushboosharma9018, 6 months ago

(a+b)³-3ab(a+b) Factorise

nariseamalavathi: is it okk

khushboosharma9018: thanks

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nariseamalavathi: i hope u have gotten my point

khushboosharma9018: ya

nariseamalavathi: hmm

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Answers

Answered by nariseamalavathi

Step-by-step explanation:

(a+b)³-3ab(a+b)=0

a³+b³+3a²b+3ab²-3a²b-3ab²=0

a³+b³=0

(a+b)(a²+b²-ab)=0

it is the formula for a³+b³

cuteattitudegirl: but my formula is right

nariseamalavathi: your formula??

cuteattitudegirl: (a+b )3 = a3 + b3 +3ab (a+b )

nariseamalavathi: ohh u r saying about a³+b³

nariseamalavathi: the question is a formula

nariseamalavathi: question is a formula of a³+b³

nariseamalavathi: yaah ur formula is right

Answered by cuteattitudegirl

Step-by-step explanation:

it is right

first check your formula

Attachments:

khushboosharma9018: no answer is that pls solve and give me

nariseamalavathi: what answer u have given is formula of a³+b³

nariseamalavathi: i have already sent the solution

nariseamalavathi: u please check it

khushboosharma9018: answer is (a+b)(a²+b²-ab)

nariseamalavathi: okk

nariseamalavathi: thats what i have mentioned

nariseamalavathi: after solving (a+b)(a²+b²-ab) we get a³+b³

khushboosharma9018: thanks

nariseamalavathi: so a³+b³ =(a+b)(a²+b²-ab)

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