Question

How do you simplify `-8 - 81 / 9 x 2^2 + 7`?

Answer 1

`color(brown)(=> -(1 + (3x^2)^2)`

Explanation:

`-8 - (81/9)(x^2)^2 + 7`

`=> -1 - (cancel(81)^color(crimson)(9))(x^4`

`=> -1 - 9 x^4`

`=> -(1 + (3x^2)^2)`