ALGEBRA - Quiz

1) Which is expanded form 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-b) (a<sup>2</sup> - b<sup>2</sup> - ab) (a-b) (a<sup>2</sup> - b<sup>2</sup>+ ab)

2) What is the value of (6³) / ((-3)³) ?

8 (-8) 27 (-27)

3) What is the value of x²-y² if (x+y) = 9, (x - y) = 4?

13 65 36 46

4) What is the value of 'X' if x - y = 6 and x + y = 8?

5 6 7 14

5) What is the value of a²+b² if a+b=9 and ab = 20?

121 (-121) 41 (-41)