Question

Me ajudem pfvv

Reduza os termos a semelhantes dos monômios a seguir:
A) 3(x + 4y) - 6(y - 6) + 5x

B) 4(x² + x - 1) + 2x² - 4x + 6

C) (2x³ - 3x² + x - 1) + (5x³ + 6x² - 7x + 3)

D) ( - 8y² - 12y + 5) + (7y² - 8)

E) (2ax³ - 5a²x - 4by) + (5ax³ + 7a²x + 6by)

F) (a² - b²) + ( a² - 3b² - c) +(5c - 2b² - a²)

G) 3y (4x² - 2x³ - 7)

H) ( x^{4} - 3x² - 5x + 1) (-4x)

Answer 1

a)
3x+12y-6y+36+5x=
3x+5x+12y-6y+36=
8x+6y+36

b)
4x²+4x-4+2x²-4x+6=
4x²+2x²+4x-4x+6-4=
6x²+2

c)2x³-3x²+x-1+5x³+6x²-7x+3=
2x³+5x³-3x²+6x²+x-7x-1+3=
7x³+3x²-6x+2

d)
-8y²-12y+5+7y²-8=
-8y²+7y²-12y+5-8=
-y²-12y-3

e)
2ax³-5a²x-4by+5ax³+7a²x+6by=
2ax³+5ax³-5a²x+7a²x-4by+6by=
7ax³+2a²x+2by

f)
a²-b²+a²-3b²-c+5c-2b²-a²=
a²+a²-a²-b²-3b²-2b²-c+5c=
a²-6b²+4c

g)
12x²y-6x³y-21y

h)
-4x^5+12x³+20x²-4x