Look for two numbers that multiply to be 45 and add to be 14. Pretend those numbers are A and B. Then,
x^2+14x+45=0 can be factored as (X+A)(X+B).
If you want help finding those two numbers, here you go:
List pairs of numbers that multiply to be 45...
1*45=45
3*15=45
5*9=45
Find the pair that add up to be 14 and use those as A and B.
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Verified answer
Look for two numbers that multiply to be 45 and add to be 14. Pretend those numbers are A and B. Then,
x^2+14x+45=0 can be factored as (X+A)(X+B).
If you want help finding those two numbers, here you go:
List pairs of numbers that multiply to be 45...
1*45=45
3*15=45
5*9=45
Find the pair that add up to be 14 and use those as A and B.