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MAT0056 ADVANCED DEVELOPMENTAL ALGEBRA
PRACTICE TEST 2
NAME:____________________
MUST SHOW YOUR WORK!
Factor each trinomial completely. (Hint: Look for
a GCF.)
1) Find the GCF (greatest common factor) for
each list of terms.
xy5, x2y3, x3y2z
13) 12x2 − 11x + 2
b) −14x4y, 7x2y, 28x3y
14) 6p2 + 7p − 10
a)
Factor out the GCF from each polynomial.
15) 8x2 − 6x − 27
2) 12y3 – 16y2 – 8y
16) 15m3 + 24m2 + 9m
3) 18xy5 + 27xy3 − 45xy2
17) 9x2 − 30x + 25
Write the polynomial in descending order. Then
factor out a GCF of "−1."
18) 81x2 + 72xy + 16y2
4) 15 − 2y − y2
Factor each binomial completely.
Factor each polynomial by grouping.
19) 16x2 – 9
5) 3x + 15 + xy + 5y
20) 25x2 − 36y2
6) 4x2  8xy  7x + 14y
21) 3y2 − 48
Factor each trinomial.
Solve each equation.
7) x2  14x + 24
22) 5x(x − 15) = 0
8) y2  6y  27
23) (5x − 2)(3x + 1) = 0
9) x2 + 3xy  40y2
Solve each equation by factoring.
Factor each trinomial completely. (Hint: Look for
a GCF.)
24) x2 + 7x − 18 = 0
10) 3a2 − 12a − 36
25) x2 − 2x = 24
11) x3 + x2 − 6x
26) 4x2 − 15x + 9 = 0
12) 2y4 + 20y3 + 32y2
© Palm Beach State
1
MAT0056 ADVANCED DEVELOPMENTAL ALGEBRA
Answer Key
1a) xy2; 1b) 7x2y
14) (6p − 5)(p + 2)
2) 4y (3y − 4y −2)
15) (4x − 9)(2x + 3)
3) 9xy2 (2y3 + 3y −5)
16) 3m(5m + 3)(m + 1)
4) − (y2 + 2y − 15)
17) (3x − 5)2
5) (x + 5)(3 + y)
18) (9x + 4y)2
6) (x – 2y)(4x – 7)
19) (4x + 3)(4x − 3)
7) (x − 2)(x − 12)
20) (5x + 6y)(5x − 6y)
8) (y + 3)(y − 9)
21) 3(y + 4)(y − 4)
9) (x − 5y)(x + 8y)
22) x = 0, 15
10) 3(a + 2)(a − 6)
23) x = −1/3; 2/5
11) x(x − 2)(x + 3)
24) x = −9, 2
12) 2y2(y + 2)(y + 8)
25) x = −4, 6
13) (3x − 2)(4x − 1)
26) x = 3/4, 3
2
© Palm Beach State
2
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