Question

5) Efetue as seguintes operações com monômios:

Answer 1

Resposta:

$a)8x+13x = 21x\\\\b)-6y -4y +5x -5y = -10y - 5y +5x =5x-15y\\\\c)7a-6a-a=0\\\\\\d)(-12x)\cdot(+3x)=-36x\\\\e)(+25x)\cdot(+4x^4)=x(+25(+4x^3))=x(100x^3)=100x^4\\\\f)(-n)\cdot(+6n)\cdot(-8)=(-6n)\cdot(-8)=+24n\\\\\\g)(15x^6)\div(3x^2)=\dfrac{15x^4}{3}\cdot\dfrac{x^2}{x^2} = 5x^4\cdot 1=5x^4\\\\h)(16x^4)\div(8x)=\dfrac{16x^3}{8}\cdot\dfrac{x}{x}=2x^3\cdot 1 = 2x^3\\\\i)(-30x^5)\div(+3x^3)=\dfrac{-30x^2}{+3}\cdot\dfrac{x^3}{x^3}=-10x^2\cdot 1 = -10x^2$

$j)(+8x^6)\div(-2x^4)=\dfrac{+8x^4}{-2}\cdot\dfrac{x^4}{x^4}=-4x^4\cdot 1 = -4x^4$

Answer 2

Resposta:

a) 21x

b) 5x - 15y

c) 0

d) -36x²

e) 100x⁵

Explicação passo a passo:

f) 48n²

g) 5x⁴

h) 2x³

i) -10x²

j) -4x²