Question

-You are painting a rectangular wall with length 5x^2 ft and width 12x ft.

-There is a rectangular door that measures x ft by 2x ft that will not be painted.



What is the area of the wall that is to be painted? Write your answer in factored form. Show your work.







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Answer 1

2x²(30x - 1)

Explanation:

Area of the wall: 5x² * 12x = 60x³

Area of the door: 2x * x = 2x²

Area to be painted is the wall minus the door:

60x³ - 2x²

Factoring this:

2x²(30x - 1)