7. Which expression is a factor of x² + 2x – 15?
1 answer:
Answer:
(x-3) is the correct expression
Step-by-step explanation:
To factor you split the expression apart -
x² + 2x – 15
This breaks up to (x+5)(x-3)
If you multiply (FOIL) these you get your expression x² + 2x – 15
Your answer choices do not include (x+5) so it must be (x-3)
<em>I hope this helps!</em>
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Hope this helps :)
They y-axis represents the -3 now all that you need to do is line it up to -3 and 3 in the graph
