Question

(z^2 +4 ) [z^2-1/4] evalute



Full explanation .​

Answer 1

Answer:

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Step-by-step explanation:

put z=x

$({x}^{2} + 4)( {x }^{2} - \frac{1}{4} ) = \\ {x}^{4} - \frac{ {x}^{2} }{4} + 4 {x}^{2} - 1 \\ {x}^{4} + \frac{15 {x}^{2} }{4} - 1$