Math, asked by vv60499370, 1 month ago

कक्षा नौवीं की गणित में 2.5 के सवाल sarvsamika wali​

Answers

Answered by adarshsiddharth
1

Answer:

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Answered by hansdaradhika96
0

Answer:

sarvsamika I. (a+b)²=a²+2ab+b²

sarvsamika II. (a-b)²=a²-2ab+b²

sarvsamika III. a²- b²=(a+b)(a-b)

sarvsamika IV. (x+a)(x+b)=x²+(a+b)x+ab

sarvsamika V. (x+y+z)²=x²+y²+z²+2xy+2yz+2zx

sarvsamika VI. (a+b)³=a³-b³-3ab(a-b)

sarvsamika VII. (a-b)³=a³-b³-3ab(a-b)

=a³-3a²b+3ab²-b³

sarvsamikaVIII. a³+b³+c³-3abc=(a+b+c)(a²+b²+c²- ab-bc-ac)

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