find the product of zeros of the quadratic polynomial 3x square + 5 x minus 2
Answers
Answered by
51
Here given polynomial :
p(x) = 3x²+5x-2
To Find: The product of it's zeroes.
Finding out zeroes :
Consider p(x) = 0
3x²+5x-2 = 0
3x²+6x-x-2 = 0
3x(x+2)-1(x+2) = 0
(x+2)(3x-1) = 0
Here x = ⅓ = α and x = -2 = β
Finding the sum of the zeroes :
αβ = ⅓ × -2 =
OR
We can directly find out the product of it's zeroes by using the relationship between the zeroes and the coefficients and constant of the polynomial :
Answered by
47
Answer: -2/3
Step-by-step explanation:
the product =c/a
so c= -2
a=3
product= -2/3
or do middle term spliting
3x^2+5x-2
3x^2+6x-x-2
3x(x+2)-1(x+2)
(x+2)(3x-1)
x=-2 x=1/3
-2 X 1/3==-2/3
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