hopen2impov
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multiply
-7x^3 (-5x^4 -13)
+35x^7 +91x^3 is this correct?
-7x^3 (-5x^4 -13)
+35x^7 +91x^3 is this correct?
intermediate algebra
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hopen2impov
Junior Member
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- Aug 4, 2010
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yeah, thank you for checking my work!
mmm4444bot
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hopen2impov said:
A note about notation.
The leading plus sign is not needed. If a leading number were not positive, it would have a negative sign in front of it. Therefore, we can simply write:
35x^7 + 91x^3
With no negative sign in front of 35, it's understood that 35 is a positive number.
