Math, asked by manisha83, 1 year ago

if p and q are zeroes of polynomial f(x) = 2x²+3. find the value of p²+q².

Answers

Answered by geeteshsaravanpaeid8

No real roots exists

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manisha83: thanks

manisha83: for helping me

geeteshsaravanpaeid8: Check it now

manisha83: thankyou so much

nayrawanya: if x = +- under root -3/2...then how p become positive and q became negative...both will be plus minus and answer will be "-3 or 0"

manisha83: kya ek or que ka ans de sakte ho

nayrawanya: ask

manisha83: if alpha and beta are zeroes of quadratic polynomial 4x²+4x+1 then form a quadratic polynomial whose zeroes are 2alpha and 2 beta

manisha83: hlo

manisha83: kar diya kya solve

Answered by nayrawanya

f(X) = 2x^2 + 3
f(p) = 2(p^2) + 3
=2p2 + 3 = 0
2p2 = -3
P2 = -3/2

f(q) = 2q2 + 3
2q2 + 3 = 0
q2 = -3/2

so p2+q2 = -3/2 -3/2
=-3

I think this is correct

geeteshsaravanpaeid8: Yours is right

geeteshsaravanpaeid8: I did a mistake at alst step

geeteshsaravanpaeid8: Last*

geeteshsaravanpaeid8: Sorry for inconvenience

manisha83: its ok

manisha83: and thanks for helping me

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