Question 1
Factorise fully 12w + 18w2
[2 marks]
Factorise fully 12w + 18w2
[2 marks]
M is the midpoint of PQ.
Work out the value of a.
[2 marks]
Give your answer as a single matrix.
[3 marks]
Line A has equation y + 4 x = 6 Line B is parallel to line A and passes through the point (2, 1) The point (d, 2 d) lies on line B.
Work out the value of d.
[4 marks]
Work out all the negative integer values of x for which 3x2 48
[3 marks]
Prove algebraically that when n is an integer
[3 marks]
How many integers between 200 000 and 400 000 can be formed using only the digits
1 2 3 5 8 9
with no repetition of any digit?
[2 marks]
A curve has equation y = x3 – 5x2 At two points on the curve, the rate of change of y with respect to x is 4
Work out an equation, in terms of x, to represent this information. Give your answer in the form ax2 + bx + c = 0 where a, b and c are integers.
[2 marks]
Hence, work out the two possible values of x. Give your answers to 3 significant figures.
[2 marks]
Work out an expression, in terms of k, for the 4th term. Give your answer in its simplest form.
[1 mark]
The 100th term of the sequence is 525
Work out the value of k.
[3 marks]
Here is a right-angled triangle.
You are given that a 5
Use trigonometry to work out the range of values of x.
[2 marks]
at the point where x = – 1 You must show your working.
[5 marks]
A (– 2, 5) and B (4, 13) are points on a circle. AB is a diameter.
Work out the equation of the circle. Give your answer in the form (x – a)2 + (y – b)2 = c where a, b and c are integers.
[3 marks]
PQRS is a cyclic quadrilateral.
Angle PSR = 4(x + 15 °) Angle PQR is 40 ° smaller than angle PSR.
Work out the value of x.
[3 marks]
Here is an isosceles triangle. All the angles are acute.
Work out the size of angle y.
[4 marks]
ABCDEFGH is a cuboid.
AB = 40 cm BC = 9 cm CG = 20 cm P is a point on HG such that HP: PG = 3: 7 AP = 25 cm
Work out the size of angle APC.
[5 marks]
Expand and simplify fully (3 x + 4)(2 x – 3)(5 x – 2)
[3 marks]
f(x) = 2x3 + 11x2 + 12x – 9
Use the factor theorem to show that (2 x – 1) is a factor of f(x).
[2 marks]
Show that f(x) = 0 has exactly two solutions.
[4 marks]
Work out the values of x between 0° and 360° for which
Give your answers to 1 decimal place. You must show your working.
[4 marks]
Using powers of 2 or otherwise, work out the non-zero value of x for which
You must show your working.
[4 marks]
The paper as printed
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