Question

What are the roots of the polynomial equation: 4k^2-144=0 [show work please!]

Answer 1

Answer:

6, -6

Step-by-step explanation:

We can use the equation x = (-b ± √b^2 - 4ac) / 2a. Quadratic equations can take the form ax^2 + bx + c = 0. In this case, a = 4, b = 0, and c = -144. Plug them in and you have

(0 ± √4^2 x 12 ^ 2) / 8

(0 ± 48) / 8

-48 / 8 = -6

48 / 8 = 6

The roots are 6 and -6.