Question

`7x(x + 4) =`simplify

Answer 1

Given expression:

`=\text{ 7x(x + 4)}`

Expanding:

`\begin{gathered} =\text{ 7x }*\text{ x + 7x }*\text{ 4} \\ =\text{ 7 }*\text{ x }*\text{ x + 7 }*\text{ x }*\text{ 4} \\ =\text{ 7 }* x^2\text{ + 7 }*\text{ 4 }*\text{ x} \end{gathered}`

Simplifying the expression:

`\begin{gathered} =7* x^2\text{ + }28* x \\ =7x^2\text{ + 28x} \end{gathered}`

Answer:

`7x^2\text{ + 28x}`