Question

Subtracting x 2 - y 2 + z2 from x2 - y 2 - z 2 , the resultant expression is​

Answer 1

Answer:

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Answer 2

Subtracting x² - y² + z² from x² - y² - z² , the resultant expression is - 2z²

Given :

The expressions x² - y² + z² and x² - y² - z²

To find :

The resultant expression when x² - y² + z² is subtracted from x² - y² - z²

Solution :

Step 1 of 2 :

Write down the given expressions

Here the given expressions are

x² - y² + z² and x² - y² - z²

Step 2 of 2 :

Find the resultant expression when x² - y² + z² is subtracted from x² - y² - z²

Subtracting x² - y² + z² from x² - y² - z² we get the resultant expression

= (x² - y² - z²) - (x² - y² + z²)

= x² - y² - z² - x² + y² - z²

= - 2z²

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