Question 9 (2 points) b. Does your answer in part a match Eric's evaluation of the simplified expression when x = 0? If so, what does this tell you about Eric's simplified expression? If not, what mistake did Eric make in his simplification process? BIUN Paragraph Lato Recom 19p... T هی Add a File Record Video Question 10 (2 points) c. Simplify the original expression completely. Show all of your steps. Paragraph B I UM Lato |Recom...❘19px... Add a File Record Video Ea </ Previous Page Next Page Page 8 of 20 3x²-27 Eric was asked to evaluate ²+7+12 x²-4x+3 ÷ when x 0, x = -5, and x = 2. To avoid having to evaluate four quadratic polynomials multiple times, Eric decided to simplify the expression before evaluating it for the first value of x. His work is shown below in blue. 3x-27 X-4213 3x²-27 = х+7х на x²+7x112 x²-4x+3 3(x²-4) (x+4x(x+1) (x+4)(x+3) (-1)(x+4) =3(x+3)(x-3)(x+4)(x+1) (x+4)(x+3)(x-x+4) =3(x-3)(x+1) (x+4)(x-1) Now substitute O for x in the simplified expression 3(x-3)XXN) (x+4)(x-1) 360-50+1) 3(-3x1)- - (0++)(0-1) Question 8 (2 points) Listen ་ 4(-D a. Evaluate the original expression for x = 0. Be sure to show all of your steps. Paragraph B I U~ A Lato Recom 19p... T Add a Fe Record Video 4 هی 20

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