What are the solutions of the equation x^4 – 5x^2 – 36 = 0, using factoring?
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aadi7571:
when x^2 = 9, so x = -3 and 3
thanks
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is 2i or just 2 a solution too?
or is it 3i?
but this is imaginary solutions, and by default we neglat these imaginary solutions
ok thanks a lot! : )
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