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 +

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> 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 +      Log On


   

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) About Me  (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)
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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) About Me  (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)