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Mathematics
Algebra
Factoring Quadratic Expressions
What two factors should you use to start factoring this quadratic expression? (numbers that multiply to a*c and add up to b)
2b^2 + 17B + 21
1 answer
To start factoring the quadratic expression 2b^2 + 17B + 21, you should use the factors of 2*21=42, which are 6 and 7. These factors should add up to the middle coefficient, 17. Therefore, you should start by factoring using 6 and 7.
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