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For x2 + 3x - 18 = (x - 3)(x + a), what value of a would make this equation true?
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3 votes
For x2 + 3x - 18 = (x - 3)(x + a), what value
of a would make this equation true?

User Gentian
by
5.9k points

1 Answer

4 votes
a=6

you can check be substituting the a value into (x-3)(x+a) once you substitute you can use foil to check and see if things make sense
User FTLPhysicsGuy
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6.2k points
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