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Lucarioplay
@Lucarioplay
January 2020
2
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1)--Fatore as seguintes expressões
I )
a) 6x³ + 8x²
b) 14xy - 21xz
c) 33xy² - 44x²y + 22x²y
d) 4ax² + 6a²x² + 4a³x²
II )
a) y³ - 5y² + y - 5
b) 2x + ay + 2y + ax
c) y³ - 3y² + 4y - 12
) ax² - bx² + 3a - 3b
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exalunosp
6x³ + 8x² = 2x² ( 3x + 4 )
14xy-21xz = 7x ( 2y - 3z)
33xy² - 44x²y + 22x²y= 11xy ( 3y - 4x + 2x )
4ax² +6a²x² + 4a³x² =2ax² (2 + 3a + 2a² )
II
y³ - 5y² + y - 5 = y² (y - 5) + 1( y - 5) = (Y² + 1)( y - 5)
2x + ay + 2y + ax= 2x + ax + 2y + ay = x ( 2 + a) + y (2 + a) = ( x + y)( 2 + a)
y³ - 3y² + 4y - 12 = y²( y - 3) + 4 ( y - 3) =(y² + 4 ) ( y - 3)
ax² - bx² + 3a - 3b = x² ( a - b) + 3 ( a - b) = ( x² + 3) ( a - b)
10 votes
Thanks 16
mariocezar
(a)
6x^3+8x^2
coloque o 2x^2 em evidencia
2x^2×(3x+4)
b)
14xy-21xz
7x .(2y-3z)
c)
33xy^2-44x^2y+22x^2y
33xy^2-22x^2 y
11xy(3y-2y)
d)
4ax^2+6a^2x^2+4a^3x^2
2ax^2 .( 2a+3a^2+2x^2)
||)
a)
y^3-5y^2+y-5
y . (y^2+1)-5(y^2+1)
(y-5) . ( y^2 +1)
b)
2x+ay+2y+ax
2ax+ay+2y
c)
y^3-3y^2+4y-12
y^2 .( y-3 ) +4.( y-3)
(y^2+4) .( y-3)
d)
ax^2-bx^2+3a-3b
x^2(a-b)+3(a-b)=(x^2+3) .(a-b)
espero ter ajudado ; )
3 votes
Thanks 11
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Lista de comentários
14xy-21xz = 7x ( 2y - 3z)
33xy² - 44x²y + 22x²y= 11xy ( 3y - 4x + 2x )
4ax² +6a²x² + 4a³x² =2ax² (2 + 3a + 2a² )
II
y³ - 5y² + y - 5 = y² (y - 5) + 1( y - 5) = (Y² + 1)( y - 5)
2x + ay + 2y + ax= 2x + ax + 2y + ay = x ( 2 + a) + y (2 + a) = ( x + y)( 2 + a)
y³ - 3y² + 4y - 12 = y²( y - 3) + 4 ( y - 3) =(y² + 4 ) ( y - 3)
ax² - bx² + 3a - 3b = x² ( a - b) + 3 ( a - b) = ( x² + 3) ( a - b)
6x^3+8x^2
coloque o 2x^2 em evidencia
2x^2×(3x+4)
b)
14xy-21xz
7x .(2y-3z)
c)
33xy^2-44x^2y+22x^2y
33xy^2-22x^2 y
11xy(3y-2y)
d)
4ax^2+6a^2x^2+4a^3x^2
2ax^2 .( 2a+3a^2+2x^2)
||)
a)
y^3-5y^2+y-5
y . (y^2+1)-5(y^2+1)
(y-5) . ( y^2 +1)
b)
2x+ay+2y+ax
2ax+ay+2y
c)
y^3-3y^2+4y-12
y^2 .( y-3 ) +4.( y-3)
(y^2+4) .( y-3)
d)
ax^2-bx^2+3a-3b
x^2(a-b)+3(a-b)=(x^2+3) .(a-b)
espero ter ajudado ; )