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Quiz 6

Quiz by Mohamed Hussien

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Q 1/10
Score 0
1. If L, M are the two roots of the equation: x² – 7x + 3 = 0, then the equation whose two roots are L+M and LM is …….
29
x² – 21 x + 10 = 0
x² - 21 x - 10 = 0
x² + 10 x + 21 = 0
x² – 10 x + 21 = 0

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10 questions

Show answers

Q1
1. If L, M are the two roots of the equation: x² – 7x + 3 = 0, then the equation whose two roots are L+M and LM is …….
x² – 21 x + 10 = 0
x² - 21 x - 10 = 0
x² + 10 x + 21 = 0
x² – 10 x + 21 = 0
120s
Q2
1. If x = 2, x = -3 are the two roots of theequation: 2x² + ax + b = 0, then a + b = ………
12
-1
-10
-6
120s
Q3
In the opposite figure:
AB is tangent, then AB = .........
12
$\frac{9}{16}$
144
63
120s
Q4
In the opposite figure:
If XY// BC, then AC = …………
16
15
18
20
120s
Q5
120s
Q6
120s
Q7
120s
Q8
If L is one of the roots of the equation x² - 4x + 1 = 0, then the value of the expression L² - 4L + 7 is .........
0
6
-1
-7
120s
Q9
In the opposite figure:
AD // BE // FC, then HF = ..........
3.6
6.3
4.8
3.75
120s
Q10
In the opposite figure:
The radius length of the circle = ............
9
6.5
4.5
6
120s

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