Question

If the sum of the zeros of 3x square + kx + 3 is 5 then k is​

Answer 1

Correct Question :- if the sum of zeroes of 3x² + kx + 3 is 5 then value of " k " is

$\rule {300}{1.5}$

Answer:

p = - 15

Step-by-step explanation:

In a Quadratic Equation, Sum of Zeros can be written as : -b / a

According to the given question,

⇒ 3x² + kx + 3 = 0

Here, 'a' = 3, 'b' = k

Sum = 5

Substituting the values, we get,

⇒ Sum = - b / a

⇒ 5 = -k /3

⇒ -k = 15

⇒ k = -15

Hence the value of k is -15.

Answer 2

Answer: -15

Step-by-step explanation:

Given,

p(x):- 3x² + kx + 3

Comparing the following  polynomial with the 2nd degree of equation of standard form ax² + bx + c,

a = 3

b = k

c = 3

Its given that sum of equation is 5. We know that for ax² +bx  + c;

Sum of Zeroes = -b/a

5 = -k/3

-k = 5 × 3

-k = 15

k = -15