Math, asked by kirostakumari20458, 9 months ago

expond the following (-a+2b-3c)^2​

Answers

Answered by shreyansnayak
2

Answer:

(-a+2b-3c)²

By using the identity (a+b+c)²

(-a)²+(2b)²+(-3c)²+2x(-a)x2b+2x(-3c)x(-a)+2x2bx(-3c)

a²+4b²+9c²-4ab+6ac-12bc

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