Question

What is the value of 4x to the third +4x if x is 4

Answer 1

the correct answer of

`4{x}^(2) + 4x`
if x=4 is 272.

to solve the equation if x equals 4, you must substitute the x of the 4.

`4( {4}^(3) ) + 4(4)`
then solve by order of operations.
solve what is inside the parentheses first

`4(64) + 4(4)`
then do the multiplication of the factors

`256 + 16`
then the final step, adding, to get the solution of 272