What are the zeros of 7x^2 -- 144 = --x^4
give an explanation and show the work. you!

Add x^4 to the left side and factor.
x^4 + 7x^2 - 144 = 0 then factor
(x^2 + 16)(x^2 - 9) = 0 set both factors = 0
x^2 + 16 = 0
x^2 = -16 square root each side
x = + and - 4i
x^2 - 9 = 0
x^2 = 9 square root each side
x = + and - 3

The answer is 6 weeks