SOLUTION: From a square piece of cardboard with width x inches, a square of width x-3 inches is removed from the center. Write the area of the remaining piece as a function of x.
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Question 90331This question is from textbook Algebra and Trigonometry
: From a square piece of cardboard with width x inches, a square of width x-3 inches is removed from the center. Write the area of the remaining piece as a function of x.
This question is from textbook Algebra and Trigonometry
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
From a square piece of cardboard with width x inches, a square of width x-3 inches is removed from the center. Write the area of the remaining piece as a function of x.
large square - inner square
f(x) = x^2 - (x-3)^2
f(x) = x^2 - (x^2 - 6x + 9)
f(x) = x^2 - x^2 + 6x - 9
f(x) = 6x - 9
:
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