Respuestas
Respuesta:
a)
3a-8b+5a-4c+2a-11b-2c
= (3a+5a+2a) + (-8b-11b) + (-4c-2c)
= 10a - 19b - 6c
b)
8x²+3x³-5x²+7x-9x³-5x²
= (3x³-9x³) + (8x²-5x²-5x²) + 7x
= -6x³ -2x² + 7x
c)
5m - 3m² +2m - 3 +m
= -3m² + (5m+2m+m) - 3
= -3m² + 8m -3
d)
1/2x + 2/3x² - 1/5 x² + 3/5
= 1/2 x + (2/3 -1/5)x² + 3/5
= 1/2 x + (10/15 - 3/15)x² + 3/5
= 1/2 x + 7/15 x² + 3/5
= x/2 + 7x²/15 + 3/5
= 7x²/15 + x/2 + 3/5
e)
8/7 a² - 3/10 a³b + 1/4b² + 2/5 ba³ - 1/7 a²
= (-3/10 a³b + 2/5 ba³) + (8/7 a² + 1/7 a²) + 1/4 b²
= (-3/10 + 4/10) a³b + 7/7 a² + 1/4 b²
= 1/10 a³b + a² + 1/4 b²
= a³b/10 + a² + b²/4
Explicación paso a paso:
Respuesta:
a)
3a-8b+5a-4c+2a-11b-2c
= (3a+5a+2a) + (-8b-11b) + (-4c-2c)
= 10a - 19b - 6c
b)
8x²+3x³-5x²+7x-9x³-5x²
= (3x³-9x³) + (8x²-5x²-5x²) + 7x
= -6x³ -2x² + 7x
c)
5m - 3m² +2m - 3 +m
= -3m² + (5m+2m+m) - 3
= -3m² + 8m -3
d)
1/2x + 2/3x² - 1/5 x² + 3/5
= 1/2 x + (2/3 -1/5)x² + 3/5
= 1/2 x + (10/15 - 3/15)x² + 3/5
= 1/2 x + 7/15 x² + 3/5
= x/2 + 7x²/15 + 3/5
= 7x²/15 + x/2 + 3/5
e)
8/7 a² - 3/10 a³b + 1/4b² + 2/5 ba³ - 1/7 a²
= (-3/10 a³b + 2/5 ba³) + (8/7 a² + 1/7 a²) + 1/4 b²
= (-3/10 + 4/10) a³b + 7/7 a² + 1/4 b²
= 1/10 a³b + a² + 1/4 b²
= a³b/10 + a² + b²
Explicación paso a paso: