If α and β are zeroes of the polynomial 2x2
-5x +3, then find the values of
(a) α+β-αβ (b) (2α+2β)/3αβ (c) ( α+β)2 αβ.
Answers
Answered by
3
Answer:
Explanation:
Given quadratic equation
2x2-5x+3
a+b= -(-5)/2= 5/2
ab=3/2
To find
1) a+b-ab
(a+b) - ab = 5/2 - 3/2= 5-3/2 = 2/2=1
2) 2a+2b/3ab
2(a+b)/3ab= 2(5/2)/3(3/2)
=10/9
3) (a+b)2ab= (5/2)2 (3/2)
=15/2
I think this is correct....
Instead of alpha and beta I used a and b...
If you know how to find alpha+ beta and alpha ×beta. ,then you can easily find the values of any questions ..and can also contruct quadratic equations when they give roots of the equation
I think it can help you friend!
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