Answer:
The answer to your question is the letter d. k = -7/2 and k = 7/2
Explanation:
Equation
4k² - 49 = 0
Process
1.- Add 49 in both sides
4k² - 49 + 49 = 49
2.- Simplify
4k² = 49
3.- Divide by 4 both sides
4k²/4 = 49/4
4.- Simplify
k² = 49/4
5.- Get the square root in both sides
√k² = √(49/4)
6.- Simplify
k = ± 7/2
or k₁ = 7/2 k₂ = -7/2