Algebra
posted by mary on .
I am really having problems with monomials: Please help!
Simplify:
4x^2 y^3 Z
 (divided by)
5y^4 Z^3
is the answer
4x
 (divided by)
5yz^2

With monomials, you can look at each unknown (variable) individually when you do a division:
4x²
 = 4x²/5
5
y³/y^{4} = 1/y
z/z³ = 1/z²
So putting everything together:
4x^2 y^3 Z / 5y^4 Z^3
4x²/(5yz²) 
Explain the difference in answers between the following exponential expressions. Include the solutions?
7^2, 7^2,(7)^2, and 7^2