alanflores40
21.08.2019 •
Mathematics
What are the zeros of 7x^2 -- 144 = --x^4
give an explanation and show the work. you!
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Ответ:
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
Ответ: