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1. The simplified expression of 3x2 – 4xy + 5 – 6x + 2x2 – 5xy – 4 + 2x is?

     5x2 – 10xy + 4x – 1
     5x2– 9xy – 4x + 1
     5x2 –xy – 8x + 9
     5x2 + 9xy + 4x -1
     x2 + xy + 4x – 1

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2.  Which of the following gives the value for the expression, -√(-81)2?

     9
     -9
     81
     -81
     3

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3.  What is the mean proportional of -8 and -32?

     4
     12
     -16
     -12
     32

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4. The inverse of the function, y = 2x + 9 is:

     y = 9 – 2x
     y = (9 – x)/2
     y = (x + 9)/2
     y = (x – 9)/2
     y = -2x – 9

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5. One piece of pipe 40m long is to be cut into two pieces. If the ratio of the lengths of the pieces is 3: 7, then the lengths of the pieces are:

     12m, 28m
     15m, 25m
     18m, 22m
     16m, 24m
     13m, 27m

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6. The simplified form of the logarithmic expression, 2log(x) – 3log(x + 5) is?

     log(2x + 5)
     log(x) * log(x + 5)
     log[ (x)2 * (x +5)3]
     log(x/(x + 5))
     log(x2/ (x + 5)3)

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7. In the figure shown, the coordinates of point ‘P’ are:

     (3, 5.2)
     (5.2, 3)
     (6, 6)
     (0, 6)
     (6, 0)

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