Posted by lisa on Wednesday, February 2, 2011 at 7:51pm.
Bob's Barber shop estimates their gross revenue for the second qaurter to be given by the polynomial 9x^3+4x^26x+9. The shop estimates their costs for that quarter to be given by 7x^2+2x+1. For the second qauter,find and simplify a polynomial that will represent their profit

algebra  Matt, Wednesday, February 2, 2011 at 7:55pm
You have to subract the second equation from the first equation. Make sure to put the second equation in parenthases and distrbute the negative sign!