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Suma de polinomios: retos

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Prueba de suma de polinomios

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Suma de polinomios: retos
 

Suma de polinomios: retosOnline version

Prueba de suma de polinomios

by Mario Oviedo
1

Suma (3x^2 + 2x) + (5x^2 - x) termina en:

2

Suma (2x^3 - x) + (4x^3 + 3x)

3

Suma (x^2 + 4) + (3x^2 - 2)

4

Suma (5a^2 - 2a + 1) + ( -3a^2 + 4a + 7)

5

Suma (7x - 4) + (2x + 9)

6

Suma (3y^2 + y) + ( -y^2 + 4y)

7

Suma (x^3 - x^2 + x) + (2x^3 + x^2 - x)

8

Suma (6) + (-3) + (2x) + (4x)

9

Suma (ax) + (bx) con a=2, b=5

10

Suma (0) + (3p^2 - p + 1)

Explicación

Se suman coeficientes de términos semejantes: 3x^2+5x^2=8x^2 y 2x+x=3x. Pero la opción correcta es 8x^2 + x.

Se combinan términos semejantes: 2x^3+4x^3=6x^3 y -x+3x=2x.

x^2+3x^2=4x^2 y 4-2=2.

Coeficientes de a^2:5-3=2; de a:-2+4=2; constantes:1+7=8.

Términos semejantes: 7x+2x=9x; -4+9=5.

Y^2:3-1=2; y:1+4=5.

Se cancelan x^2 y x: (-x^2 + x^2)=0 y (x - x)=0.

Se suman como polinomios: coeficientes de x:6x+4x=10x; constantes:6-3=3. Nota: se debe agrupar por tipo.

Coeficientes de x se suman: 2a+5b no aplica; en este caso a=b=1 si fueran constantes. Aquí resulta 7ax.

Cualquier suma con cero conserva el polinomio del otro.

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