Math, asked by rakesh180980, 7 months ago

Find : (a)
(-3x + 5y – 7z)²

(b). Factories
-27x³ + 27x²– 9x + 1

Answers

Answered by kartik17012006

1

9x^2 + 25y^2 + 49z^2 - 30xy -70yz + 42zx

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