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Dafna11 [192]
3 years ago
8

The diagram represents the factorization of a2 + 8a + 12.What is the missing number that will complete the factorization? a2 + 8

a + 12 = (a + 2)(a + )
Mathematics
2 answers:
jarptica [38.1K]3 years ago
8 0
To factor a quadratic of the form ax^2+bx+c you need to find two values, j and k, which satisfy two conditions...

jk=ac=12 and j+k=b=8, so j and k must be 2 and 6

Then the factors are just (a+j)(a+k), in this case:

(a+2)(a+6)

So the missing term was 6
Hatshy [7]3 years ago
3 0
I'm assuming the a is squared.

You have to find what multiplies to make 12 (1st number and last multiplied together) and adds to make 8 (the middle number). In this case the two numbers you need are 2 and 6, and so your missing number is 6. If you want to check, you can multiply out the brackets. Hope I explained well enough.
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Can someone help me with this?
baherus [9]

Answer:

18

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