Register

CAT 1995 | Question: 82

2,010 views

1 Answer

Best answer
3 3 votes

Let the roots of the quadratic equation be α and α2.

Product of roots = α*α2 = -8

α3 = -8

α = -2

Roots are -2 and 4 , now put the roots in given equation

42 + 4k - 8 = 0

k = -2

Option D is Correct.

• selected by
Voting & Accepting an answer helps improve the community
← Previous · CAT 1995 | Question:...Next → · CAT 1995 | Question:...
← Previous in category · CAT 1995 | Question:...Next in category → · CAT 1995 | Question:...
Position:
Show:

Related questions

1 1 vote
1 1 answer
2.1k
2.1k views
go_editor asked Mar 11, 2020
2,053 views
CAT 2016 | Question: 82
Given the quadratic equation $x^2 – (\text{A} – 3)x – (\text{A} – 2)$, for what value of $\text{A}$ will the sum of the squares of the roots be zero?$-2$$3$$6$$\text{None...
3 3 votes
1 1 answer
2.9k
2.9k views
Misbah Ghaya asked Oct 4, 2017
2,876 views
CAT 1995 | Question: 185
A company produces five types of shirts - A, B, C, D, E - using cloth of three qualities - High, Medium and Low - using dyes of three qualities - High, Medium, and Low. T...
1 1 vote
1 1 answer
2.6k
2.6k views
Misbah Ghaya asked Oct 4, 2017
2,611 views
CAT 1995 | Question: 184
A company produces five types of shirts - A, B, C, D, E - using cloth of three qualities - High, Medium and Low - using dyes of three qualities - High, Medium, and Low. T...
1 1 vote
2 2 answers
3.5k
3.5k views
Misbah Ghaya asked Oct 4, 2017
3,458 views
CAT 1995 | Question: 183
A company produces five types of shirts - A, B, C, D, E - using cloth of three qualities - High, Medium and Low - using dyes of three qualities - High, Medium, and Low. T...
1 1 vote
1 1 answer
4.4k
4.4k views
Misbah Ghaya asked Oct 4, 2017
4,393 views
CAT 1995 | Question: 182
A company produces five types of shirts - A, B, C, D, E - using cloth of three qualities - High, Medium and Low - using dyes of three qualities - High, Medium, and Low. T...