Question

if the sum of the zeroes of the polynomial px^+5x+8p is equal to the product of the zeroes find the value of p...

Answer 1

@Parvathysubhash - is that a px^2?

Answer 2

ya

Answer 3

if a & b are roots/zeroes then;\[a+b=ab\] according to ur question:)
then it it;
\[\frac{-b}{a}=\frac{c}{a}.\]
And ur equation is as\[ax^2+bx+c=0.\]

Answer 4

Okay, now..

For a quadratic equation of the standard form\[ax^2 + bx + c =0\]the sum of the roots is (-b/a) and the product of the roots is (c/a).

Here your equation is px62 + 5x + 8p = 0, can you compare this with the standard equation and tell me what the 'a' 'b' and 'c' are for this case?

Answer 5

put the values to get ur answer
some common sense would also be used:)

Answer 6

** i mean "px^2" over there, not "px62".

Answer 7

@apoorvk ...a =p, b=5 ,c=8p

Answer 8

very well!
now product of roots = c/a
and sum of roots = -b/a.

so what would their value be?

Answer 9

*values

Answer 10

-b/a = -5/p, c/a =8p/p

Answer 11

thx i gt it
actually i 4gt to cancel

Answer 12

p=-5/8??

Answer 13

YES!! Right-O!!!!!! :)

Answer 14

thnq..:D

Answer 15

Anytime! :P

Answer 16

den nw...hav nthr question