Question

Evaluate 7x - (2x)2 + x 3 for x = -2.

Answer 1

`7x - (2x)2 + {x}^(3)`

`7x - 4x + {x}^(3)`

`3x + {x}^(3)`

`3( - 2) + { (- 2)}^(3)`

`- 6 + - 8`

`- 14`