Question

$7x(x + 4) =$simplify

Answer 1

Given expression:

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

Expanding:

$\begin{gathered} =\text{ 7x }\times\text{ x + 7x }\times\text{ 4} \\ =\text{ 7 }\times\text{ x }\times\text{ x + 7 }\times\text{ x }\times\text{ 4} \\ =\text{ 7 }\times x^2\text{ + 7 }\times\text{ 4 }\times\text{ x} \end{gathered}$

Simplifying the expression:

$\begin{gathered} =7\times x^2\text{ + }28\times x \\ =7x^2\text{ + 28x} \end{gathered}$

Answer:

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