Home
Class 10
MATHS
If one root of x^(2)+ax+4=0 is twice the...

If one root of `x^(2)+ax+4=0` is twice the other root, then the value of 'a' is

A

`-3sqrt(2)`

B

`8sqrt(2)`

C

`sqrt(2)`

D

`-2sqrt(2)`

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
Promotional Banner

Topper's Solved these Questions

  • QUADRATIC EQUATIONS

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS (VERY SHORT ANSWER (VSA) QUESTIONS)|20 Videos

  • QUADRATIC EQUATIONS

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS (SHORT ANSWER (SA) TYPE - 1 - QUESTIONS)|28 Videos

  • QUADRATIC EQUATIONS

    ZEN PUBLICATION|Exercise TEXTUAL ( Exercise 10.4 )|8 Videos

  • PROBABILITY

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS HOTS [HIGHER ORDER THINKING SKILLS]-QUESTIONS|24 Videos

  • REAL NUMBERS

    ZEN PUBLICATION|Exercise ADDITIONAL QUESTIONS(LONG ANSWER TYPE QUESTIONS )|5 Videos

Similar Questions

Explore conceptually related problems

If one root of x^(2)-x-k=0 is square of the other, then k=

If one root of (a^(2)-5 a+3) x^(2)+(3 a-1) x+2=0 is twice the other then a=

If one zero of the polynomial p(x) = x^(2) - 6x + k is twice the other then find the value of k .

If one root of the equation 5 x^(2)+13 x+k=0 is reciprocal of other, then the value of k is

If one root of the polynomial p(x) =x^2-6x+k is twice the other then find the value of k.

If one root of the equation x^(2) + px + q = 0 is square of the other root, then :

If one root of the ax^(2) + bx + c = 0 is equal to nth power of the other root, then the value of (ac^(n))^((1)/(n+1)) + (a^(n)c)^((1)/(n+1)) equal :

If one root of the equations x^(2) + px +q=0 is 3 times the other , prove that 3p^(2) = 16q.

If one root of x^(2)-x+3 a=0 is double the root of x^(2)-x+a=0 then non-zero value of ' a ' is

If one root of the equation (a-b) x^(2)+a x+1=0 is double the other and if a is real, then the greatest value of b is