Evaluating Algebraic Expressions
Algebra, and more...
 
1. HARD

Evaluate \(\frac{x^4y}{xy^3}-\frac{xy^4}{x^3y}\) for \(x=2\) and \(y=\frac{1}{2}\).

 
2. HARD

Evaluate \(\frac{x}{y}+\frac{y}{z}+\frac{z}{x}\) for \(x=2\), \(y=4\) and \(z=6\).

 
3. HARD

Evaluate \(xyz-2xy+3yz-4zx+5x-6y+7z\) for \(x=1\), \(y=-1\) and \(z=0\).

 
4. HARD

Evaluate \(\frac{2x^2-3y^3}{x-y}\) for \(x=6\) and \(y=4\).

 
5. HARD

Evaluate \(\frac{xy^2z^3}{xy^3z^5}\) for \(x=9\), \(y=4\) and \(z=1\).

 
6. HARD

Evaluate \(ab^2c+(ab)^2c^3\) for \(a=2\), \(b=3\) and \(c=-1\).