University:
Glendale Community College
Course:
MAT120 | Intermediate Algebra
Academic year:

2019
Views:

53

Pages:

1
Author:

Mitchell Kane

Section 1.1 – 1.9 practice. This is the test I gave last spring. Each part of a problem is worth 5 points on our test, unless stated Your test will also have 19 problems, with one rectangle word problem 1 – 12: Completely factor the polynomial. State if a polynomial is prime. 1) x2 + x – 20 2) -3y3 – 12y2 + 15y (6 points) 3) 6n2 + 13n + 5 4) x2 + 49 5) 49x2 – 16 6) x3 + 27 7) 4m2 - 8m – 5 8) 2n2 - 7n + 3 9) x2 + 5x + 6x + 30 10) 6x2 + 3x - 4x - 2 11) 27x3 – 1 12) x2 + 5x + 11 13 – 18: Solve each equation. 13) (x + 4)(x – 6)=0 14) x2 – 2x – 15 = 0 15) 6x2 + 5x - 4 =0 (6 points) 16) x(x + 2) = 63 (6 points) 17) 2x2 + 3x - 5 = 0 (6 points) 18) (x – 1)(x – 5) = 0 19) A rectangular garden is 3 feet longer than it is wide. The garden has an area of 28 square feet. Find the dimensions of the garden. (6 points) (*************** -4 points for correct answer with no algebra **************) Answers: 1) (x + 5)(x – 4) 2) -3y(y + 5)(y – 1) 3) (2n + 1)(3n + 5) 4) Prime 5) (7x + 4)(7x - 4) 6) (x + 3)(x2 – 3x + 9) 7) (2m – 5)(2m + 1) 9) (x + 6)(x + 5) 10) (3x – 2)(2x + 1) 11) (3x – 1)(9x2 + 3x +1) 12) Prime 13) x = -4, 6 14) x = 5, -3 15) x = ½, -4/3 16) x = 7, -9 17) Answer: x = 1, -5/2 18) x = 1,5 19) Width 4 feet length = 7 ft 8) (n – 3)(2n – 1)