Question

What are the zeros of , where

? help please need some help someone help please

Answer 1

`{ \boxed{\boxed{\begin{array}{cc} \maltese  \bf \: given \\ \\ \rm \: f(x) = ( {x}^(2) + 16)( {x}^(2) - 9) \\ \\ \bf \: for \: zeroes \\ \\ \pink{ \boxed{\boxed{\begin{array} c \bf \: {x}^(2) + 16 = 0 & \bf \: {x}^(2) - 9 = 0 \\ \\ = > {x}^(2) = - 16& {x}^(2) = 9 \\ \\ = > x = \pm √( - 16) &x = \pm \: √(9) \\ \\ = > x = \pm \sqrt{ {i}^(2) {4}^(2) } &x = \pm \: \sqrt{ {3}^(2) } \\ \\ = > x = \pm \: 4i&x = \pm3 \end{array}}}} \\ \\ \rm \: x = \pm3 \: and \pm \: 4i\end{array}}}}`

Option A is the correct answer