Question

What is the discriminant of the quadratic equation 7x^2 - 13x - 5 = 0

A. 29

B. 309

C. -29

D. -309

Answer 1

Answer:B.309 I hope this helps you

Explanation:

7x^2-13x-5=0

Identify the coefficients , and of the quadratic equation

something like this

a=7 b=-13, c=-5

Evaluate the discriminant by substituting a=7, b=-13 and c=-5 into the expression b^2-4ac

Something like this

(-13)^2-4 time 7( -5)

Simplify the expression then you get your answer

309

Answer 2

Answer: B. 309.

Step-by-step explanation: The discriminant of the quadratic equation 7x^2 - 13x - 5 = 0 is D = b^2 - 4ac, where a = 7, b = -13, and c = -5.

Plugging in the values, we get:

D = (-13)^2 - 4 * 7 * -5 = 169 + 140 = 309

Therefore, the answer is B. 309.