Efetue as Divisões:
a) ( x³ + 2x² + x ) : (+x) =
b) (x² + x³ + x⁴) : (+x²) =
c) (x⁷ + x⁵ + x³) : (-x²) =
d) (3x²y – 18xy²) : (+3xy) =
e) (7x³y – 8x²y²) : (-2xy) =
f) (4x²y + 2xy – 6xy²) : (-2xy) =
g) (20x¹² – 16x⁸ – 8x⁵) : ( +4x⁴) =
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Verified answer
Dividindo cada termo do polinômio pelo monômio
a) (x³ + 2x² + x ) : (x) = x² + 2x + 1
b) (x² + x³ + x⁴) : (x²) = 1 + x + x² ou x² + x + 1
c) (x⁷ + x⁵ + x³) : (-x²) = -x⁵ - x³ - x
d) (3x²y – 18xy²) : (+3xy) = x - 6y
e) (7x³y – 8x²y²) : (-2xy) = -7x²/2 + 4xy
f) (4x²y + 2xy – 6xy²) : (-2xy) = -2x - 1 + 3y ou -2x + 3y - 1
g) (20x¹² – 16x⁸ – 8x⁵) : ( +4x⁴) = 5x⁸ - 4x⁴ - 2x
Divisão de potências de mesma base: copia-se as bases e subtrai os expoentes. Caso tenha coeficientes, divida-os normalmente
Exemplo: 20x¹² / 4x⁴ = 5x¹²⁻⁴ = 5x⁸
obg
a)x(x²+2x+1)
-------------------=
x
x²+2x+1
b)x²(1+x+x²)
------------------=
x²
1+x+x²
c)x³(x^4+1+x)
-------------------=
-x²
-(x^4+1+x)
d)3xy(x+6y)
-----------------=
3xy
x+6y
e)xy(7x²-8y)
-----------------=
-2xy
-(7x²y)
---------
2
f)2xy(2x+1-4y)
---------------------=
-2xy
-(2x+1-4y)
g)4x³(5x^9-4-2x²)
------------------------=
4x^4
5x^9-4-2x²
--------------
x