Question

2. Add :

( ii ) 4x² + 3y² - 5z², - 6x² - 4y² + 2z²​

Answer 1

Answer:

= -2x² - y² - 3z²

Step-by-step explanation:

4x² + 3y² - 5z², - 6x² - 4y² + 2z²

= 4x² + 3y² - 5z² + (- 6x² - 4y² + 2z²)

= 4x² + 3y² - 5z² - 6x² - 4y² + 2z²

= 4x² - 6x² + 3y² - 4y² - 5z² + 2z²

= -2x² - y² - 3z²

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Answer 2

Answer:

-2x^2-y^2-3z^2

Step-by-step explanation:

4x^2+(-6x^2)=4x^2-6x^2=-2x^2

3y^2+(-4y^2)=3y^2-4y^2=-y^2

-5z^2+2z^2=-3z^2