Answer:

Hey!

A. Write a polynomial that represent the area of the board.

• The board is rectangular so the area for a rectangle will be length times width or (lw).
• From that we will have:
• where represents the area of the board.

B. Find the area of the white board if n=5 meters.

• We will use the polynomial expression

• Substitute first the value of n in the expression then solve.

• Change all n by 5.

• Solve inside the Parenthesis first (always refer to PEMDAS)

• Next solve for the product of 3 and 5 because 9 is inside a parenthesis means we need to multiply the product of outside the parenthesis first before multiplying it by 9.

Therefore is the area of the white board if n=5 meters.

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