Respuesta:
1. 4x - 3y
2. - 5a² + 6a - ba - 16
3. - 2x²y - 6xy² + 8xy
Explicación paso a paso:
1.
( x - 2y ) + ( 3x - y )
= x - 2y + 3x - y
= x + 3x - 2y - y
= 4x - 3y
2.
( 4a² - ba + 7 ) + ( 6a - 23 - 9a² )
= 4a² - ba + 7 + 6a - 23 - 9a²
= 4a² - 9a² + 6a - ba + 7 - 23
= - 5a² + 6a - ba - 16
3.
( - x²y + 8xy - xy² ) - ( 5xy² + x²y )
= - x²y + 8xy - xy² - 5xy² - x²y
= - x²y - x²y - xy² - 5xy² + 8xy
= - 2x²y - 6xy² + 8xy
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Verified answer
Respuesta:
1. 4x - 3y
2. - 5a² + 6a - ba - 16
3. - 2x²y - 6xy² + 8xy
Explicación paso a paso:
1.
( x - 2y ) + ( 3x - y )
= x - 2y + 3x - y
= x + 3x - 2y - y
= 4x - 3y
2.
( 4a² - ba + 7 ) + ( 6a - 23 - 9a² )
= 4a² - ba + 7 + 6a - 23 - 9a²
= 4a² - 9a² + 6a - ba + 7 - 23
= - 5a² + 6a - ba - 16
3.
( - x²y + 8xy - xy² ) - ( 5xy² + x²y )
= - x²y + 8xy - xy² - 5xy² - x²y
= - x²y - x²y - xy² - 5xy² + 8xy
= - 2x²y - 6xy² + 8xy