4. The quadratic expression x2 -8x+10 has its smallest value for some integer value of x on the interval 05 x S 10. Set up a TABLE to nd the smallest value of the expression and the value of x that gives this value. Show your table below. 5. Consider the complex expression (x+7)(x +3) +(x- l](x-4). (a) Multiply the two sets of binomials and combine like terms in order to write this expression as an equivalent trinomial in standard form. Show your work. {b} Set up a TABLE to verify that your answer in part (a) is equivalent to the original expression. Don't hesitate to point out that it is not equivalent (which means you either made a mistake in your algebra or in your table set up). Show your table. 6. The product of three binomials is shown below. Write this product as a polynomial in standard form. (Its highest power will be .1." ). (x-l)(x+2](x-4) 7. Set up a table for the answer you found in #6 on the interval 5 5 x 55. Where does this expression have zeroes? I. Use the STORE feature on your calculator to evaluate each of the following. No work needs to be shown. (a) cans for x=8 (b) 3.1:2 2x+5 for x=3 (0) 18+st 4x20 for x=5 (d) |x*-2x-a| for x=l (e) :21: for x=2 {n :1; for x=5 2. The STORE features is particularly helpful in checking to see if a value is a solution to an equation. Let's see how this works in this problem. Consider the relatively easy linear equation: 6x-3=4x+9 (a) Solve this equation for x. (b) Using STORE ,deterrnine the value of both the le hand expression, 613, and the right hand expression, Ix-+9, at the value of .7: you found in {a}. (c) Why does what you found in part (b) verify that your solution is correct (or possibly incorrect if you made a mistake in (a))? 3. Two of the following values of x are solutions to the equation: x2 +4): 12 = 10x+4. Determine which they are and provide a justication for your answer. II Ch 5-: II no x=2 x=5 x