Question

factorise th term 4x^4+7x^2-2​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

$\bf 4x^4+7x^2-2\\\\=4x^4+8x^2-x^2-2\\\\=4x^2( x^2+2)-(x^2+2)\\\\=(x^2+2)(4x^2-1)\\\\=(x^2+2) [ (2x)^2-1^2]\\\\=(x^2+2)(2x+1)(2x-1)$