Question

factorise

${x}^{4} + 12 {x}^{2} + 64$
plz do it urgently ​

Answer 1

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${x}^{4} + 12 {x}^{2} = - 64 \\ \\ {x}^{2} ( {x}^{2} + 12) = - 64 \\ {x}^{2} = - 64 \\ {x}^{2} = - 64 - 12 \\ {x} = \sqrt{ - 64} \\ x = \sqrt{ - 76}$

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Hope it helps ❤✨