Aim #46 - Manhasset Public Schools

2
Aim #46: How do we factor quadratic trinomials in the form ax + bx + c when
a = 1?
Homework: Handout
2
Do Now: Factor:
1) 25x - 30x + 9
4
2
4
2) x - 169y
Multiply the following binomials. Write your answers in standard form .
1) (x + 1)(x - 7)
2) (x + 9)(x + 2)
3) (x - 5)(x - 3)
4) (x +
5
3
15
2
6
3) 4x + 36x
)(x - 1)
5) (x - 4 )(x - 4 )
6) (a + 4b)(a - 3b)
7) (y - 5z)(y + z)
8) (x + 7)(x - 9)
9) (x - 7y)(x + 12y)
10) (c + 18d)(c -
2
3
d)
Now, FACTOR the following quadratic expressions. Check your results by
multiplying to see if the product is the original quadratic expression.
2
2) m + m - 90
2
4) x + 3x - 4
2
6) x + 11x - 42
2
8) x + 7x - 18
1) x + 8x + 7
3) k - 13k + 40
5) x - 2x - 8
7) x - 5x + 6
2
2
2
2
2
10) y – 10y + 9
2
12) -100 + 99v + v
9) x - 15x + 50
11) c – 11c + 24
2
2
2
13) x + 6xy + 8y
2
2
14) m + 7mn + 12n
2
15) a + 11ab - 26b
2
2
17) -35 + x + 2x
2
2
2
20) x - 4x - 21
2
21) x - 4xy - 60y
2
2
16) x - 2xy - 35y
18) 32 + 18x + x
19) x + 18x + 80
2
2
2
2
23) x + 4xy - 77y
2
2
2
2
22) c - 14cd + 24d
24) a - 15ab + 54b
2
25) Which value of b would make the expression x + bx - 36 factorable?
a) 5
b) 4
c) 3
d) 2
2
26) Which value of c would NOT make x + 10x + c factorable?
a) 25
b) 24
c) 21
d) 18
2
27) x - 5x - 36
2
29) x - 10x - 24
2
31) x + 8x - 20
2
33) x + 30x - 64
2
35) x - 8x - 9
2
28) x - x - 30
2
30) x - 8x + 12
2
32) x + 16x + 64
2
34) x - 14x + 45
2
36) x + 3x - 28
Attachments
Sets Worksheet #2.doc
Naming properties worksheet.doc