Question

If the ratio of the roots of the equation
4x² - 6x + p = 0 is 1:2 then the value of p is

(A) 1
(B)2
(C)-2
(D) -1​

Answer 1

Answer:

2

Step-by-step explanation:

it can be done by quadratic equations

Answer 2

Answer:

b) 2

Step-by-step explanation:

if the ratio of the roots are in the ratio p:q

then , pqb²=(p+q)²ac. {short cut}

so,

1*2*6²=(1+2)²*4*p

p=2