Question

Find the area of the yellow area shown here a. 4x^2+2x+6 b.2x^2+4x+6 c.2x^2+2x+6

Answer 1

The horizontal yellow are is : 2(x+3) = 2x + 6

The vertical yellow are is : x(x+2+x) = x(2x+2) = 2x² + 2x

Total area = 2x + 6 + 2x² + 2x = 2x² +4x + 6 (answer B)