College Algebra / Alg 085 · Atom · ~20 seconds
Factoring x² + bx + c
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State
x² + bx + c factors as (x + p)(x + q) when p and q multiply to c and add to b.
Show
x² + 7x + 12: the pair 3 and 4 multiplies to 12 and adds to 7, so (x + 3)(x + 4).
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