Question

8.If one root of the equation Px

2

-14x +8 =0 is six times the other, then the value of P will be

(a) P=3 (b) P=5 c) P=7 (d) none of these ​

Answer 1

Step-by-step explanation:

Let the roots be a and 6a

px²-14x+8=0

1)a+6a=14/p 2)a(6a)=8/p

Solve 1)

7a=14/p

a=2/p

Substitute a in 2)

6a²=8/p

3a²=4/p

3(2/p)²=4/p

3(4/p²)=4/p

p=3