Question

AJUDAAAAAAA

Fatore completamente cada um dos polinômios, colocando o fator comum em evidência
a) 2y+6

b) ab-a

c) 12x+16y

d) -4y-8b

e)-4z³-12z²

f) 13ab+12bc-b
g)20x²y+25xy²

h) 4ax-6ay
i) y³-y²+y
j)x²y²+x²y²+xy²
k)a²b²-a³
l)12y- 3a
m)8b-16m+8c
n)3(b+c)-y(b+c)
o) ay(2m+5n)+4(2m+5n)

Answer 1

a)
= 2y + 6
= 2(y + 3)
------------------------------------
b)
= ab - a
= a(b - 1) 
-------------------------
c)
= 12x + 16y
= 4(3x + 4y)
----------------------
d)
= - 4y - 8b
= - 4(y + 2b)
---------------------------
e)
= - 4z³ - 12z² 
= - 4z²(z + 3)
------------------------------------------
f)
=  13ab + 12bc - b 
= b(13a + 12c - 1)
**************************************
g)
= 20x²y + 25xy²
= 5xy(4x + 5y)
*********************************
h)
= 4ax - 6ay
= 2a.(2x - 3y)
********************************
i)
= y³- y²+y
= y(y² - y + 1)
***************************
j)
= x²y² + x²y² + xy² 
= 2x²y² + xy²
= xy²(2x + 1)
********************
k)
= a²b² - a³ 
= a²(b² - a)
*********************
l)
= 12y - 3a
= 3(4y - a)
------------------------------
m)
= 8b - 16m + 8c
= 8(b - 2m + c)
----------------------------------------
n)
= 3.(b + c) - y.(b + c)
= (b + c).(3 - y)
---------------------------------------
o)
= ay.(2m + 5n) + 4(2m + 5n)

= (2m + 5n).(ay + 4)
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