factorize x² - y² - z² - 2yz
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10
X ^ 2 - ( Y^2 + Z ^2 + 2yz )
Using formula ,
a ^2 + b ^2 + 2ab = ( a + b )^2
= X ^2 - ( Y +Z ) ^2
= ( X + Y+ Z ) ( X - Y - Z )
Using formula ,
a ^2 + b ^2 + 2ab = ( a + b )^2
= X ^2 - ( Y +Z ) ^2
= ( X + Y+ Z ) ( X - Y - Z )
djvarghese12pdc5rd:
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Answered by
8
Answer:
x²-y²-2yz-z²
=x²-(y²-2yz-z²)
=x²-(y+z)²
=(x-y-z)(x+y+z)
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