Respuesta:
1)5x²-6x+3 -( -7x²-2x+8) 2)-2a+4b-7c -( 8a-3b+2c)
5x²-6x+3+ 7x²+2x-8 -2a+4b-7c -8a+3b-2c
5x²+7x² -6x+2x +3-8 -2a-8a +4b+3b-7c-2c
2x² - 4x -5 Rpta. -10a + 7b - 9c Rpta.
3)4/3x²-4x+7/2xy-2y - ( 5/3x²+3/4x-2/5xy+8y)
4/3x²-4x+7/2xy-2y - 5/3x²-3/4x+2/5xy-8y
4/3x²- 5/3x²-4x-3/4x+7/2xy+2/5xy-2y-8y
-1/3x² - 13/4x + 39/10xy - 10y Rpta.
4)6m-9mn+3n -( -9m+2mn-7n)
6m-9mn+3n +9m-2mn+7
6m+9m -9mn-2mn+3n+7
15m - 11mn + 3n+7 Rpta.
5) 6a²-4a+2ab-5b² - (6a-7ab-2b²+7) 6)3x²+2xy+2 -( 2x²+7xy+3)
6a²-4a+2ab-5b²- 6a+7ab+2b²-7 3x²+2xy+2 -2x²-7xy-3
6a²- 4a-6a+2ab+7ab-5b²+2b²-7 3x²-2x²+2xy-7xy+2-3
6a² - 10a + 9ab -3b² -7 Rpta. x² -5xy - 1 Rpta.
7)4/3x²+2/5x+7/4 -(1/2x²-7/3x+3/4)
4/3x²+2/5x+7/4-1/2x²+7/3x-3/4
4/3x²-1/2x²+2/5x+7/3x+7/4-3/4
5/6x² + 41/15x +4/4
5/6x² + 41/15x + 1 rpta
Explicación paso a paso:
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Respuesta:
1)5x²-6x+3 -( -7x²-2x+8) 2)-2a+4b-7c -( 8a-3b+2c)
5x²-6x+3+ 7x²+2x-8 -2a+4b-7c -8a+3b-2c
5x²+7x² -6x+2x +3-8 -2a-8a +4b+3b-7c-2c
2x² - 4x -5 Rpta. -10a + 7b - 9c Rpta.
3)4/3x²-4x+7/2xy-2y - ( 5/3x²+3/4x-2/5xy+8y)
4/3x²-4x+7/2xy-2y - 5/3x²-3/4x+2/5xy-8y
4/3x²- 5/3x²-4x-3/4x+7/2xy+2/5xy-2y-8y
-1/3x² - 13/4x + 39/10xy - 10y Rpta.
4)6m-9mn+3n -( -9m+2mn-7n)
6m-9mn+3n +9m-2mn+7
6m+9m -9mn-2mn+3n+7
15m - 11mn + 3n+7 Rpta.
5) 6a²-4a+2ab-5b² - (6a-7ab-2b²+7) 6)3x²+2xy+2 -( 2x²+7xy+3)
6a²-4a+2ab-5b²- 6a+7ab+2b²-7 3x²+2xy+2 -2x²-7xy-3
6a²- 4a-6a+2ab+7ab-5b²+2b²-7 3x²-2x²+2xy-7xy+2-3
6a² - 10a + 9ab -3b² -7 Rpta. x² -5xy - 1 Rpta.
7)4/3x²+2/5x+7/4 -(1/2x²-7/3x+3/4)
4/3x²+2/5x+7/4-1/2x²+7/3x-3/4
4/3x²-1/2x²+2/5x+7/3x+7/4-3/4
5/6x² + 41/15x +4/4
5/6x² + 41/15x + 1 rpta
Explicación paso a paso: