kx (x - 2) + 6 = 0 is a quadratic equation in x , where k is a constant.
The value of k is ........................
The solution of the inequality 3x - 5x - 2 < 0 is ......................
2
If x + y = 185
2
2
and x + y = 19
, then the value of xy will be ........
Ann sketches the graph of the function y = x - 2x - 8
The line of symmetry of her sketch should be ...........................
2
The least integer value satisfying the inequality ,
is .....................
Alice solves the following pair of simultaneous equations.
The sum of the values she obtains for x and y will be ..................
The minimum value of x + 8x - 1 is ..................
2
What should be added to (x + 3x ) to complete it as a square of a binomial ?
2