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28 January, 05:01
How do you factor 5n^2+19n+12?
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Kamora Sparks
28 January, 08:30
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(5n + 3) (n+4)
Step-by-step explanation:
5n^2+19n+12
(5n + x) (n+y)
5 * x + y = 19
xy = 12
choices for x and y are 1,12 12,1
2.6 6,2
3.4 4,3
Guess and check
x < 4 because we are multiplying by 5
check 3,4
5*3 + 4 = 19
(5n + 3) (n+4)
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