Question # 1

The ration of the sum and product of roots of 7x² - 12x + 18 = 0 is:

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7:12

2:3

3:2

7:18

No. of ways of solving a quadratic equation:

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1

3

2

4

If one root of 2x² + ax + 6 = 0 is 2 then the value of a is:

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7

-7

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4

16

8

64

3^2x - 3^x - 6 = 0 is:

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reciprocal equation

exponentialequation

radicalequation

none of these

Which one is exponential equation:

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ax² + bx + c = 0

ax + b = 0

2^x = 16

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none of these

If P(x) is a polynomial of degree m and Q(x) is a polynomial of degree n, the product P(x) . Q(x) will be a polynomial of degree:

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m . n

m - n

m + n

m × n

Which one is radical equation:

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ax² + bx + c

ax + b = 0

2^x = 16

The other name of quadratic equation is:

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linear equation

1st degree equation

2nd degree equation

none

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i

Four fourth roots of 625 are:

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±5,±5i

±5,±25i

±25,±25i

none of these

Sum of all three cube roots of unity is:

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1

-1

0

3

A numbers exceeds its square root by 6, the number is:

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6

3

9

none of these

If a polynomial P(x) = x2 + 4x2 - 2x + 5 is divided by x - 1, then the reminder is:

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8

-2

4

5

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linear equation

Quadraticequation

cubicequation

radicalequation

If the sum of the roots of ax² - (a + 1) x + (2a + 1) = 0 is 2, then the product of the roots is:

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1

2

3

4

If the roots of x² - bx + c = 0 are two consecutive integers, then: b² - 4ac =

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0

1

-1

2

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c = 0

b = 0, c = 0

If α, ß are complex cube roots of unity, then 1 + αⁿ + ßⁿ = .......... where n is a positive integer divisible by 3:

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1

3

2

4

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