quadratics equations
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TOPICQUADRATIC EQUATIONS
LEARNING OBJECTIVES
•Understand the concept of quadratic equations
and their roots
•Understand and use the conditions for quadratic
equations to have a)two different rootsb)two equal rootsc)no roots
2008
Answers
3marks
It is given that -1 is one of the roots of the quadratic equation
x2 – 4x – p = 0 .Find the value of p.
2007
Answers
4 marks
a)Solve the following quadtaic equation; 3x2 + 5x – 2 = 0
b)The quadratics equation hx2 + kx + 3 = 0 , where h and k are constants , has two equal roots. Express h in terms of k.
2006
Answers
A quadratic equation x2 + px + 9 = 2x
has two equal roots .
Find the possible values of p
3 marks
2005
Answers
3 marks
Solve the quadratic equations x(2x-5) = 2x -1
Give your answer correct to three decimel places.
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2008
p = 5
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a) X = 1/3 or x= -2
b)
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P = 8 or
P = -4
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2005
X= 3.351 or
X= 0.1492
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