## anonymous one year ago Find x3 − 2y2 − 3x3 + z4 if x = 3, y = 5, and z = −3.

1. anonymous

Find x3 − 2y^2 − 3x^3 + z^4 if x = 3, y = 5, and z = −3.

2. anonymous

3^3 - 2(5)^2 - 3(3)^3 + (-3)^4

3. Astrophysics

Yes so now evaluate

4. Astrophysics

$3^3 = 3 \times 3 \times 3$ $2(5)^2 = 2 (5 \times 5)$ $-3(3)^3 = -3(3 \times 3 \times 3)$ $(-3)^4 = (-3 \times -3 \times - 3 \times - 3)$ see the pattern here?