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WorksheetsState Level Maths Quiz (EM) by Aski Sir GHS KOTTALAGI
Total questions: 15
Worksheet time: 30mins
The quadratic equation has degree
0
1
2
3
An standard form of quadratic equation is
ax² + bx + c = 0 here a≠0
ax² × bx × c = 0 here a≠0
ax² - bx - c = 0 here a≠0
ax² + bx × c = 0 here a≠0
The formula for finding the roots of a quadratic equation is
x =[ -b ± √(b²+4ac) ] / 2a
x =[ b ± √(b²-4ac) ] / 2a
x =[ -b ± √(b²-4ac) ] / 2
x =[ -b ± √(b²-4ac) ] / 2a
√(3x²+6) = 9
The positive root of this equation is
0
2
4
5
A quadratic equation can have maximum number of roots are
1
2
3
4
When writing the equation m(m-1) = 6 into the standard form of the quadratic equation, it becomes
m² - m - 3 = 0
m² - m - 6 = 0
m² + m + 3 = 0
m² + m + 6 = 0
Discriminant of a quadratic equation is
b² - 4ac
b² + 4ac
b² × 4ac
b² ÷ 4ac
If a quadratic equation discriminant, b² - 4ac = 0 then that quadratic equation
Has two distinct real roots.
Has two equal real roots
Has no real roots
None of the above
2x² - 5x + 3 = 0 , the roots of this quadratic equation are
Real and distinct
Real and equal
Not real
All of the above
3x² + 6x - 2 = 0 The value discriminant of this quadratic equation is
12
24
50
60
x² - 7x + 12 = 0 The roots of this quadratic equation are
x = 3 & x = -4
x = 3 & x = 4
x = -3 & x = 4
x = -3 & x = -4
If 2x² + Kx + 3 = 0 equation has equal roots, then value of k is
± 2√3
± 2√2
± 2√6
± 24
The value of the discriminant of equation x² + 4x + 4 = 0 is
< 0
> 0
= 0
= 1
If the roots of the equation ax² + bx + c = 0 are equal, then the value of b is
± 2ac
± 2√(ac)
± √(2ac)
± ac
The area of rectangular plot is 528 m². The length of the plot is one more than twice its breadth. Express this situation in the form of quadratic equation
2x² + x + 528 = 0
2x² + x - 528 = 0
2x² - x - 528 = 0
2x² - x + 528 = 0
