Well.. a polynomial expression is an expression that has 3 or more different algebraic terms.
Algebraic terms can be: x^2, 2x, or x^3
One example is: x^2 + x^3 - 7y
Since x^(-2)+5 only has one algebraic term, which is x^(-2), this is not a polynomial.
Step-by-step explanation:
Look at the picture below
-17.6 -(-21.3) = -17.6 + 21.3=3.7
20÷2=10 ( gallons half full)
10+5=15 ( gallons you add)
The tank has 15 gallons and is 75% full
