SOLUTION: Factor each expression completely 4. x2 � 13x + 42 (1 point) (x + 6)(x � 7) (x � 6)(x + 7) (x � 6)(x � 7) (x + 6)(x + 7) 5. 64x2 + 144x + 81 (1 point) (8x � 9)2 (8x +

Question 536098: Factor each expression completely
4. x2 � 13x + 42 (1 point)
(x + 6)(x � 7)
(x � 6)(x + 7)
(x � 6)(x � 7)
(x + 6)(x + 7)
5. 64x2 + 144x + 81 (1 point)
(8x � 9)2
(8x + 9)2
2(8x + 9)
(8x + 9)(8x � 9)
6. 3x2 + 5x � 50 (1 point)
(x � 25)(3x + 2)
(3x � 25)(x + 2)
(x � 10)(3x + 5)
(3x � 10)(x + 5)
7. 5k2 � 125 (1 point)
(k � 5)2
5(k � 5)2
(k + 5)(k � 5)
5(k + 5)(k � 5)
8. 15n2 � 8n +1 (1 point)
(5n + 1)(3n + 1)
(5n � 1)(3n � 1)
(5n + 1)(3n � 1)
(5n � 1)(3n + 1)
Found 2 solutions by Alan3354, april4869:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
You have the answer. You should be able to figure out which one it is.
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eg
4. x2 � 13x + 42 (1 point)
(x + 6)(x � 7)
(x � 6)(x + 7)
(x � 6)(x � 7)
(x + 6)(x + 7)
------------------
since the 42 is +, the signs have to be the same.
And, the x term is -13 so both are negative.
--> -6 and -7
Answer by april4869(19) (Show Source): You can put this solution on YOUR website!
I'm assuming these are multiple choice questions.
#4
(x � 6)(x � 7)
#5
(8x-9)^2
#6
(3x � 10)(x + 5)
#7
5(k + 5)(k � 5)
#8
(5n � 1)(3n � 1)
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