An open box is to be made by cutting four squares of equal size out of a 1010-inch by 1515-inch rectangular piece of cardboard (one at each corner) and then folding up the sides. a.a. Let xx be the length of the side of the square cut from each corner. Find an expression for the volume of the box in terms of xx. Leave the expression in factored form.     b.b. What is a realistic range of values for xx? Answer in interval notation.

Q: what is the area to the left of 2.75

A: the area to the left of 2.75

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Polynomials

Try substituting 1. You will get 6 and not 0. Try other real values also. What About -2? Let us check.