quadratics equations
TRANSCRIPT
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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
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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.
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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.
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2006
Answers
A quadratic equation x2 + px + 9 = 2x
has two equal roots .
Find the possible values of p
3 marks
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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
2008
p = 5
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2007
2007
a) X = 1/3 or x= -2
b)
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2006
2006
P = 8 or
P = -4
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2005
2005
X= 3.351 or
X= 0.1492