# If one root of the equation ax2 + bx+ c=0 is 3-4i then a + b + c=

1.  40a

2.  36a

3.  -20a

4.  20a

4

20a

Explanation :
No Explanation available for this question

# The order of the multiple root of -1 of the equation x4+4x3+6x2+4x+1=0 is

1.  4

2.  3

3.  2

4.  1

4

4

Explanation :
No Explanation available for this question

# If one root of x2 –(3+3i)x + (1+3i) is 1+i then the other root is

1.  1-i

2.  2+ i

3.  3+i

4.  1+3i

4

2+ i

Explanation :
No Explanation available for this question

# If the expression x2 –(5m-2)x+(4 m2 +10m +25)=0 can be expressed as a perfect square, then m =

1.  8/3 or 4

2.  -8/3 or 4

3.  4/3 or 8

4.  -4/3 or 8

4

-4/3 or 8

Explanation :
No Explanation available for this question

# The multiples roots of x5-3x4-5x3+27x2-32x+12=0 are

1.  4,1

2.  3,4

3.  2,3

4.  1,2

4

1,2

Explanation :
No Explanation available for this question

# The degree of the equation4/x+x/7=x-1/3 is

1.  4

2.  3

3.  2

4.  1

4

2

Explanation :
No Explanation available for this question

# If α, β are the roots of x2 –p(x+1) +C =0 then (α+1)(β+1) =

1.  1-C

2.  1+C

3.  C-1

4.  C

4

1+C

Explanation :
No Explanation available for this question

# If α,β,γ,δ are the roots of x4-x3-7x2+x+6=0 then α4+β4+γ4+δ4=

1.  109

2.  99

3.  89

4.  79

4

99

Explanation :
No Explanation available for this question

# If the roots of the equation x2 -15-m(2x-8)=0 are equal then m=

1.  3,-5

2.  3,5

3.  -3,5

4.  -3,-5

4

3,5

Explanation :
No Explanation available for this question

# The equation whose roots are diminished by 2 than those of x4-5x3+7x2-17x+11=0

1.  x4+3x3-x2+17x-19=0

2.  x4+3x3+x2+17x-19=0

3.  x4+3x3+x2-17x-19=0

4.  x4+3x3-x2-17x-19=0

4