Question

factorise: a4+a2+1
plzzz tell this and...
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Answer 1

here is ur answer

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Answer 2

${a}^{4} + {a}^{2} + 1$
$=( { {a}^{2} })^{2} + 2 \times {a}^{2} + 1 - {a}^{2}$
$= {( {a}^{2} + 1 })^{2} - {a}^{2}$
$= ({a}^{2} + 1 + {a} )( {a}^{2} + 1 - {a} )$
$= ({a}^{2} + a + 1)( {a}^{2} - a + 1)$

hope it will help you.


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