Question

me ajudem (100pontos )

Answer 1

3.

A)

2(3x+5)*2(2x+3)
(6x+10)*(4x+6)
24x²+76x+60

B)

(2x+1)+(2x+2)+2(x+3)+(3x+2)+(x+4)
2x+1+2x+2+2x+6+3x+2+x+4
10x+15

C)

(x+5)+(4x+3)+(x-2)
x+5+4x+3+x-2
6x+6

4.

A)

8x²+4x+5x+2x²
10x²+9x

B)

9y²-3y²+7y+4-4y
6y²+7y+4-4y
6y²+3y+4

Espero ter ajudado :)

Answer 2

Resolução passo-a-passo:

3.A)

2(3x+5)•2(2x+3)

(6x+10)(4x+6)

24x²+36x+40x+60

24x²+76x+60

B)

(2x+1)+(2x+2)+2(x+3)+(3x+2)+(x+4)

2x+1+2x+2+2x+6+3x+2+x+4

2x+2x+2x+3x+x+1+2+6+2+4
6x+4x+9+6
10x+15

C)

(x+5)+(4x+3)+(x—2)

x+5+4x+3+x—2

x+4x+x+5+3—2

5x+x+8—2

6x+6

4.

A)

8x²+4x+5x+2x²

8x²+2x²+4x+5x

10x²+9x

B)

9y²—3x²+7y+4—4y

6y²+4y+4

Dúvidas??Comente!!