MATH. Give an explanation each answer.

1. Which is the simplified form of 5x + 7x -2x2- 10x + 5? a.3x'+3x+5 c. 3x-3x+5 b. 3x3+2x+5 d. 2x?+3x+5 2. What is the degree of the expression 5x* + 7x - 2x2- 10x . 5? IL. O b. 1 c. 2 d. 3 3. Which statement is tre? a. 7x - 9x* is a polynomial expression of degree 9. b. 7x - 9x* is a polynomial expression of degree 6. c. 7x3- 9x* is a polynomial expression of degree 3. d. 7x3 - 9x* is a polynomial expression of degree 2. 4. What kind of function is 2al + a" + a + 4? a. linear b. quadratic c. cubic d. quartic 5. Which of the following is the factored form of x2 - 8x - 20? a. (x - 2)(x + 10) c. (x + 5) (x - 4) b. (x - 2) (x +4) d. (x - 10) (x + 2) 6. What is the sum of -2x2+7x+1 and -3x -7? a. -2x? + 4x - 6 c. 2x2 + 4x - 6 b. -2x2 - 4x + 6 d. 2x2 - 4x + 6 7. What is the remainder when x* + 3x? - 5x2 + 6x -3 is divided by x -2? a. 28 b. 29 c. 30 d. 31 8. What are the zeroes of the polynomial function f(x) = x (2x + 1)(x -- 1)? a. r=0; x=1;x = - C. X= 0; x=-1;x = - b. x = 0; x = 1;x = 1 d. x = 0; x = 1;x= 9. Which of the following has a y- intercept of (0,6)? a. y = 6(x - 1) (x- 2) c. y = 12- (x - 2) (x- 3) b. y = 6 + (x - 1) (x - 2) d. y = 6(xx -3) (x-2) 10. Which best describes the graph of the polynomial function f(x) = x3+ 2x - 15? a. a parabola that is opened upward with vertex at (2, -15) b. a parabola that is opened upward with vertex at (-2, -15) c. a parabola that is opened downward with vertex at (-2, -15) d. a parabola that is opened downward with vertex at (2, -15)