Question

Twice the square of a number

Answer 1

x² × 2

Explanation:

Notice vocabulary:

• twice → multiplication by a factor of two → ×2
• a number → unknown number; variable → x
• the square → raised to the power of two → x²

Put this information together.

"Twice the square of a number"

Since it says of a number, this number comes first →
`x`

"Twice the square of a number"

The square of a number means that the variable will be squared →
`x^2`

"Twice the square of a number"

Multiply the variable by a factor of two →
`x^2*2`

:Done

Answer 2

2 * x^2

Explanation:

in word form: two times the square of x

"a number" can be any variable; i used x