Question

Calcule:
a) 29a + 4a – 21a
b) x + 3x – x + 5x – x
c) 3x + 4x³ – 5x + x² + 2x

Answer 1

Resposta:

a) 29a + 4a – 21a =

33a - 21a =

12a

b) x + 3x – x + 5x – x =

4x + 4x - x =

8x - x =

7x

c) 3x + 4x³ – 5x + x² + 2x =

-2x + 4x³ + x² + 2x =

4x³ + x²

Answer 2

Resposta:

a) 12a

b) 7x

c) 4x³ + x²

Explicação passo-a-passo:

a)

29a + 4a – 21a

(29 + 4 - 21) a

12a

b)

x + 3x – x + 5x – x

7x

c)

3x + 4x³ – 5x + x² + 2x

0 + 4x³ + x²

4x³ + x²