Thursday 25 April 2013

ADD MATHS EXERCISE CHAPTER 2


QUADRATIC EQUATIONS

PAPER 1

1.            Express  x(3x – 2) = x2 + 5  in the general form.                                                [2 marks]






Answer : …………………………........

2.            Form the quadratic equation which has roots  2 dan -3.                                   [2 marks]







Answer: …………………………........

3.      Form the quadratic equation which has roots  -3 dan . Give your answer in the form  , where  a, b and c are constants.                                     [2 marks]













Answer: …………………………........

 4.        Solve the quadratic equation  2x(3x – 1) + 9x = 5.                                         [3 marks]












Answer : …………………………........

5.      Solve the quadratic equation  h2 – 3h + 2 = 2(h – 1).                                        [3 marks]








Answer : …………………………........

6.            Solve the quadratic equation  2x(x – 4) = (1 – x)(x + 2).
Give your answer correct to four significant figures.                                        [4 marks]







                                                                                                              
Answer : …………………………........

7.            Solve the qudratic equation .
Give your answer correct to 3 decimal places.                                                  [4 marks]








Answer : …………………………........

8       Given one of the roots of the quadratic equation  x2 + kx +1 = 0 is four times the other root. Determine the values of  k.                                                                    [3 marks]








Answer : …………………………........

9.        One of the roots of the quadratic equation 2x2 + 8x  =  2k + 1 is three times the other root ,where k is a constant. Find the roots and the value of k.
[4 marks]











Answer : roots =…………………........
                     k = ………………........  
10.    Given that  m and n are the roots of the quadratic equation  x2 + 3x – 9 = 0, form a quadratic equation whose roots are  and .                                                      [4 marks]







Answer : …………………………........

11.       Find the range of values of p if the quadratic equation  has two       distinct roots.                                                                                                  [3 marks]






Answer : …………………………........


12.        The quadratic equation has no roots. Find the range of values of k .                                                                                                               [3 marks]








Answer : …………………………........


13.       The quadratic equation  has two distinct roots. Find the range           of values of  p.                                                                                                            [2 marks]












Answer : …………………………........

14.      A quadratic equation   has two equal roots.
            Find the possible values of  p.                                                                                    [3 marks]
















Answer : …………………………........

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