Homework Help: algebra

Posted by mema on Thursday, May 26, 2011 at 10:59pm.

Bob barber shop estimates their gross revenue for the second quarter to be given by the polynimal 3x^3+6x^2+3x+3. The shop estimates their cost for the quarter to be given by 9x^2-6x+5. Find and simplify the polyminal that will represent their profit. Will someone show me how to do this?

algebra - MathMate, Friday, May 27, 2011 at 9:09am
Profit = gross revenue - cost
Gross revenue = 3x^3+6x^2+3x+3
Cost = 9x^2-6x+5

Profit (group like terms and add)
= 3x^3+6x^2+3x+3 -(9x^2-6x+5)
= 3x^3+6x^2+3x+3 - 9x^2+6x-5
= 3x³ + 6x²-9x² +3x+6x +3-5
= 3x³ - 3x³ + 9x -2

Answer this Question

Related Questions

algebra - Essay; show all work. Bob’s Barber Shop estimates their gross ...
algebra - Bob's Barber shop estimates their gross revenue for the second ...
math - Bob’s Barber Shop estimates their gross revenue for the second ...
algebra - Essay; show all work. Bob’s Barber Shop estimates their gross ...
algebra - Essay; show all work. Bob’s Barber Shop estimates their gross ...
Math - 9. Essay; show all work. Bob’s Barber Shop estimates their gross ...
word problem - Bob’s Barber Shop estimates their gross revenue for the ...
Math - How to rewrite an expression with negative exponents such as : -12(3x-1...
Algebra - checking problem Use FOIL to multiply: (6x – 1)(3x – 4) 6x*...
algebra - Suzies flower shop estimates that supplies cost for one month will be ...

For Further Reading

First Name:
School Subject:
Answer: