What must be subtracted from x power 2 + 4xy - 2y power 2 to get -2x power 2 + 11 xy - 7y power 2
Answers
Answered by
1
Step-by-step explanation:
x^2+4xy-2y^2
add -3x^2+7xy-5y^2 to get
this
-2x^2+11xy-7y^2
Answered by
9
Answer:
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Step-by-step explanation:
( x² + 4xy - y² ) - ( ax² + bxy + cy² ) = ( -2x² + 11xy - 7y² )
ax² + bxy + cy² = ( x² + 4xy - y² ) - ( -2x² + 11xy - 7y² )
= x² + 4xy - y² + 2x² - 11xy + 7y²
= 3x² - 7xy + 6y²
which is our required term to be reduced from x² + 4xy - y² to get -2x² + 11xy - 7y²
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