Question 154410
Note: use the caret symbol "^" to represent exponents. For example, x^2 ---> {{{x^2}}}. This way, you only need one line.





{{{4x^3+4x^2-x+48}}} Start with the given equation.



{{{4(2)^3+4(2)^2-2+48}}} Plug in {{{x=2}}}.



{{{4(8)+4(2)^2-2+48}}} Cube {{{2}}} to get {{{8}}}.



{{{4(8)+4(4)-2+48}}} Square {{{2}}} to get {{{4}}}.



{{{32+4(4)-2+48}}} Multiply {{{4}}} and {{{8}}} to get {{{32}}}.



{{{32+16-2+48}}} Multiply {{{4}}} and {{{4}}} to get {{{16}}}.



{{{94}}} Combine like terms.



So {{{4(2)^3+4(2)^2-2+48=94}}}



So {{{4x^3+4x^2-x+48=94}}} when {{{x=2}}}