Answer:
5x^2+10
Step-by-step explanation:
the formula for area is height x width.
the question tells us that this rectangle has a height of 5 and a width of x^2+2
so, if we substitute these values into our formula for area we get 5 (x^2+2)
multiply 5 by every term in the brackets to get your final answer, 5x^2+10
