Álgebra: conceptos fundamentales

Which of the following options shows like terms?

• 2x, xy

• 2x, -10x

• $3x^2,\ 4x^3$

• $x^2z,\ xz^2$

pq and -qp are like terms

• True

• False

What is the missing value in the equation: $\left(\ \ \ \ \ \ \right)\ a^2\times3a\ =27a^3$  

The standard of the questions:

• Low

• Medium

• High

What is Algebra?

Simplify -9x + 5y + 8x - 4y.

• x - y

• -x + 9y

• 0

• -x + y

• None of the above

Simplify (3x + 1) + (4x + 5).

• 7x + 6

• 13x

• 7x + 5

• 3x + 6

• None of the above

Simplify (8p - 5q) - 2(3q - 2p).

• 3q - q

• 12p - 11q

• 4p -11q

• 8p - q

• None of the above

What are the values of ‘a’, ‘b’, and ‘c’?

(4x^2)-(2x)+16

• A: 4

  B: -2

  C: 16

• A: -4

  B: 2

  C: 16

• A: 4

  B: 2

  C: -16

• A: -4

  B: -2

  C: -16

Simplify 2(b + 1) - (b + 2).

• 3b + 3

• b - 1

• b + 4

• b

• None of the above