Something so different from what I taught. I have no idea how to solve this.
$\displaystyle 24x^2z^2-2x^2z^2+x^2+z^2$
$\displaystyle (x+y+xy)-(3x+4x^2)$
NOTE: the exponents behind the z's are suppose to be -2.
Something so different from what I taught. I have no idea how to solve this.
$\displaystyle 24x^2z^2-2x^2z^2+x^2+z^2$
$\displaystyle (x+y+xy)-(3x+4x^2)$
NOTE: the exponents behind the z's are suppose to be -2.
Did you notice that the x and z dependence of the first two terms are exactly the same? Combine them. If you were told "put the answers in descending order with regard to the x variable", since all three terms have $\displaystyle x^2$, they can be in any order
x- 3x= -2x.$\displaystyle (x+y+xy)-(3x+4x^2)$
So use "z^{-2}".NOTE: the exponents behind the z's are suppose to be -2.