evelynnslania evelynnslania

13-03-2018
Mathematics

contestada

find real or imaginary solutions of x^4-10x^2=-9

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susanwiederspan susanwiederspan

18-03-2018

This resembles a quadratic and we can factor it using that pattern.

[tex](x^2)^2-(10x^2)+9=0[/tex]

[tex](x^2-9)(x^2-1)[/tex]

[tex](x+3)(x-3)(x+1)(x-1)=0[/tex]

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