Question

A rectangle has a height of 7x^27x 2 7, x, squared and a width of 3x^2+8x+73x 2 +8x+73, x, squared, plus, 8, x, plus, 7. Express the area of the entire rectangle.

Answer 1

The expression 21x⁴ + 56x³ + 49x² represents the area of the entire rectangle.

What is the area of the rectangle?

It is defined as the area occupied by the rectangle in two-dimensional planner geometry.

The area of a rectangle can be calculated using the following formula:

Rectangle area = length x width

The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

The area of the rectangle = length x width

= (3x² + 8x + 7)(7x²)

$\rm =7x^2\cdot \:3x^2+7x^2\cdot \:8x+7x^2\cdot \:7$

= 21x⁴ + 56x³ + 49x²

Thus, the expression 21x⁴ + 56x³ + 49x² represents the area of the entire rectangle.

Learn more about the rectangle here:

https://brainly.com/question/15019502

#SPJ1