Question

Alquem me ajuda? Por favor (:

1) reduza as termos semelhantes:

A) -4x+6y+10x2y-x

B) x+7x+10y-13

C) 2x-8y-6y-y-9x

D) 3m²+2m-4m+m+7



2) simplifique as expressões algébricas:

A) 4.(x+1)+3(×+1)

B) -2.(2×-4)+5(-2×-10)

C) 3.(4×-6)-2.(-7×-3)

D) -5.(-5y+2×)-2(-6y-3)+4x

Answer 1

1- Reduzindo iremos obter:

A) - 5x + 6y 20xy.

• - 4x + 6y + 10x2y - x.
• - 4x + 6y + 20xy - x.
• - 5x + 6y 20xy.

B) 8x + 10y - 13.

• x + 7x + 10y - 13.
• 1x + 7x + 10y - 13.
• ( 1 + 7 ) x + 10y - 13.
• 8x + 10y - 13.

C) - 7x - 15y.

• 2x - 8y - 6y - y - 9x.
• - 7x - 8y - 6y - y.
• - 8y - 6y - 1y.
• ( 8 - 6 - 1 ) y.
• - 7x - 15y.

D) 3m² - m + 7.

• 3m² + 2m - 4m + m + 7.
• 3m² + 2m - 4m + 1m + 7.
• 3m² + ( 2 - 4 + 1 ) m + 7.
• 3m² - m + 7.

2- Simplificando iremos obter:

A) 7x + 7.

• 4 . ( x + 1 ) + 3 ( x + 1 ).
• 4x + 4 + 3 ( x + 1 ).
• 4x + 4 + 3x + 3.
• 7x + 4 + 3.
• 7x + 7.

B) - 14x - 42.

• - 2 . ( 2x - 4 ) + 5 ( - 2x - 10 ).
• - 4x + 8 + 5 ( - 2x - 10).
• - 4x + 8 - 10x - 50.
• - 14x + 8 - 50.
• - 14x - 42.

C) 26x - 12

• 3 . ( 4x - 6 ) - 2 . ( - 7x - 3 ).
• 12x - 18 - 2 ( - 7x - 3 ).
• 12x - 18 + 14x + 6.
• 26x - 18 + 6.
• 26x - 12

D) 37y - 6x + 6.

• - 5 . ( - 5y + 2x ) - 2 ( - 6y - 3) + 4x.
• 25y - 10x - 2 ( - 6y - 3) + 4x.
• 25y - 10x + 12y + 6 + 4x.
• 37y - 10x + 6 + 4x.
• 37y - 6x + 6.

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Answer 2

Explicação passo-a-passo:

1) reduza as termos semelhantes:

-4x+6y+10x²y-x

-4x-x+6y+10x²y

-5x+6x+10x²y

x+7x+10y-13

8x+10y-13

2x-8y-6y-y-9x

2x-9x-8y-6y-y

-7x-15y

3m²+2m-4m+m+7

3m²-2m+m+7

3m²-m+7

2) simplifique as expressões algébricas:

4.(x+1)+3(×+1)

4x+4+3x+3

4x+3x+4+3

7x+7

-2.(2×-4)+5(-2×-10)

-4x+8-10x-50

-4x-10x+8-50

-14x-42

3.(4×-6)-2.(-7×-3)

12x-18+14+6

12x+14x-18+6

26x-12

-5.(-5y+2×)-2(-6y-3)+4x

25y-10x+12y+6+4x

25y+12y-10x+4x+6

37y-6x+6