1 Answer

Daniel Lundmark · Answer 1 · 2024-01-02T11:29:11+0000

We have to find the shaded area.

This can be calculated as the difference between the big rectangle and the small rectangle.

We then can write:

$\begin{gathered} A=A_b-A_s \\ A=(x+8)(x+6)-3x(x+3) \\ A=x^2+8x+6x+48-3x^2-9x \\ A=-2x^2+5x+48 \end{gathered}$

Answer: the shaded area is equal to A = -2x^2+5x+48

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