ALGEBRA - Practice Mode

1) What is the value of x, if 3 (2x - 4) = -4x + 28 ?

4 8 6 12

Correct Answer: 4

2) What is the value of x if (x + 2) / 2 = 19?

38 33 35 36

Correct Answer: 36

3) What is the value of x if 11x+4=37?

2 3 4 5

Correct Answer: 3

4) Which is the expansion of a³ + b³?

(a-b) (a<sup>2</sup> + b<sup>2</sup> - ab) (a+b) (a<sup>2</sup> + b<sup>2</sup> - ab) a<sup>3</sup> + b<sup>3</sup> + 3ab (a+b) a<sup>3</sup> - b<sup>3</sup> + 3ab (a-b)

Correct Answer: (a+b) (a<sup>2</sup> + b<sup>2</sup> - ab)

5) What is the expansion of (a+b+c)²?

a<sup>2</sup> + b<sup>2</sup>+ c<sup>2</sup>+ 2 (ab + bc + ca) a<sup>2</sup> + b<sup>2</sup> + c<sup>2</sup>- 2ab + 2bc + 2ca a<sup>2</sup> + b<sup>2</sup> + c<sup>2</sup> + 2ab - 2bc + 2ca a<sup>2</sup> - b<sup>2</sup> - c<sup>2</sup> + 2ab + 2bc + 2ca

Correct Answer: a<sup>2</sup> + b<sup>2</sup>+ c<sup>2</sup>+ 2 (ab + bc + ca)

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