Mth 95 Quiz #1

last firstSummer 2011 Name:

(1) (9 points) Factor completely. If a polynomial is prime, state this.

a) 8a2 12a

b) x2 + x 12

c) 2x3 + 16

d) 12t3 + 12t2 + 3t

e) b2 + 1

f) x4 + 4x3 x 4

(2) (3 points) Solve.

6y2 + y = 5

(3) (3 points) The product of two positive consecutive odd numbers is 195. Find thenumbers.

(4) (2 points bonus) A cement walk of uniform width is built around a 20-ft by 40-ftrectangular pool. The total area of the pool and the walk is 1500 ft2. Find the widthof the walk.