Question

PLEASE HELP IM STUCK

Answer 1

`{ \qquad\qquad\huge\underline{{\sf Answer}}}`

Here we go ~

To get roots of the function, equate it with 0

`\qquad \sf  \dashrightarrow \: 4 {x}^(2) - 36 = 0`

`\qquad \sf  \dashrightarrow \: 4x {}^(2) = 36`

`\qquad \sf  \dashrightarrow \: {x}^(2) = 36 / 4`

`\qquad \sf  \dashrightarrow \: {x}^(2) = 9`

`\qquad \sf  \dashrightarrow \: x = √(9)`

`\qquad \sf  \dashrightarrow \: x = \pm3`

So, the roots are 3 and -3 ~