Question

Multiply using the generic rectangle.(x - 7)² what is the sum?

Answer 1

Let' solve the given expression using generic rectangles.

Then, we sum all the expressions inside the boxes.

`\begin{gathered} x^2-7x-7x+49 \\ x^2-14x+49 \end{gathered}`

Therefore, the sum is

`x^2-14x+49`