Question

Subtract x² - 2y² + z² from 2x²+ 3y² – 4z²

step by step and proper pls.
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Answer 1

$\large\sf\underline{Answer\::}$

Subtract x² - 2y² + z² from 2x² + 3y² – 4z²

2x² + 3y² – 4z² - ( x² - 2y² + z² )

= 2x² + 3y² – 4z² - x² + 2y² – z²

= 2x² - x² + 3y² + 2y² – 4z² – z²

= x² + 5y² - 5z²

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