Question

Evaluate the following expression using the values given: Find x^3 - 2y^2 - 3x^3 + z^4 if x = 3, y = 5, and z = -3

Answer 1

So firstly, plug in the numbers into the expression: $3^3-2*5^2-3*3^3+(-3)^4$

Next, solve the exponents: $27-2*25-3*27+81$

Next, solve the multiplications: $27-50-81+81$

Lastly, combine everything, and your answer will be -23.