Find the product of the zeores of 2x^+kx+6
Answers
Correct Question: Find the product of the zeros of 2x² + kx + 6.
Solution :-
⇒ A polynomial of degree 1 is called a Linear polynomial.
⇒ A polynomial of degree 2 is called a Quadratic polynomial.
⇒ A polynomial of degree 3 is called a Cubic polynomial.
→ α and β are Greek letters pronounced as 'alpha' and ' beta' respectively.
→ α and β are the zeroes of the quadratic polynomial ax² + bx + c.
- Sum of the zeroes = α + β
- Product of the zeroes = αβ
→ α + β = -b/a
→ αβ = c/a
a = 2 , b = k and c = 6 .
Sum of the zeroes = -b/a
⇒ -k/2
Product of the zeroes = c/a
⇒ 6/2
⇒ 3
∴ αβ = 3 . ( Product of the zeroes ! )
Answer: = 3
Step-by-step explanation:
Given,
p(x): 2x² + kx + 6
Comparing the following equation with standard form of equation of 2nd degree ax² + bx +c
a = 2
b = k
c = 6
We know that,
Product of zeroes = c/a
= 6/3
= 3
Note:- Its only true for quadratic equations.
Sum of zeroes = -b/a
Product of zeroes = c/a