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Solving Quadratics By Factoring (1)

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Algebra 1
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Solving Quadratics By Factoring
Period____
Factor each expression. (GCF)
1) 28 p 3 + 24 p
2) 7 + 42n
3) 8n + 8
4) 8x 2 + 36x
Factor each expression. (Diff. of Squares & Perfect Square Trinomials)
5) 25n 2 - 16
6) x 2 - 25
7) 16x 2 - 1
8) 9m 2 - 4
9) 25x 2 - 20x + 4
10) 9 p 2 + 24 p + 16
Solve each equation by factoring.
11) (r + 7)(7r - 8) = 0
12) (a + 1)(a + 7) = 0
Worksheet by Kuta Software LLC
-1-
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13) n 2 + 13n + 40 = 0
14) k 2 + k - 42 = 0
15) n 2 - 2n - 6 = -6
16) a 2 - 60 = 4
17) b 2 - 4 = 0
18) x 2 - 30 = -x
19) x 2 - 20 = -4
20) -7a 2 + 11a + 29 = -8a 2 + 1
21) (v + 7)(5v + 2) = 0
22) k(7k + 4) = 0
23) 5v 2 = 46v - 48
24) 5x 2 - 27x = -28
25) 3x 2 + 2x - 15 = -7
26) 8r 2 + 65r + 24 = -2r
Worksheet by Kuta Software LLC
-2-
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1) 4 p(7 p 2 + 6)
5) (5n + 4)(5n - 4)
2
9) (5x - 2)
13) {-8, -5}
17) {-2, 2}
2
21) -7, 5
4
25) , -2
3
{ }
{ }
Answers to Solving Quadratics By Factoring
2) 7(1 + 6n)
3) 8(n + 1)
4) 4x(2x + 9)
6) ( x + 5)( x - 5)
7) (4x + 1)(4x - 1)
8) (3m + 2)(3m - 2)
2
8
12) {-1, -7}
10) (3 p + 4)
11) -7,
{ }
14) {-7, 6}
18) {5, -6}
4
22) - , 0
7
3
26) - , -8
8
{ }
{ }
7
15) {2, 0}
19) {4, -4}
6
23) , 8
5
{ }
16) {8, -8}
20) {-7, -4}
7
24) , 4
5
{ }
Worksheet by Kuta Software LLC
-3-
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