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OpenStudy (anonymous):
The area of a rectangular painting is given by the trinomial x2 + 4x – 21. What are the possible dimensions of the painting? Use factoring.
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OpenStudy (anonymous):
Help! I will give a medal. (I know how to give them now)
OpenStudy (anonymous):
Factor the trinomial. You are looking for 2 numbers that when multiplied will equal -21 but when added will equal 4: (x + )(x - )
OpenStudy (anonymous):
-7 and 3
OpenStudy (anonymous):
wait, no
OpenStudy (anonymous):
-3 and 7
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