posted by lisa .
Bob's Barber shop estimates their gross revenue for the second qaurter to be given by the polynomial 9x^3+4x^2-6x+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
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!