Question

Evaluate the following expression using the values given.

Find 2x2 - 2z4 + y2 - x2 + z4 if x = -4, y = 3, and z = 2.

Numerical Answers Expected!

Answer 1

#2 Evaluate the following expression using the values given:

Find -a2 - 3b3 + c2 + 2b3 - c2 if a = 3, b = 2, and c = -3.

-67

-17

-31

1

Answer 2

Replace the letters with what they are equal to and do the aritmetic.
So if i insert y = 3 i get
\[2x^{2} - 2z ^{4} + 3^{2} - x ^{2} + z^{4}\]
For negative numbers you insert them wrapped in a parentheses.
For example \[2x ^{3}, x = -1\] becommes \[2 \times (-1)^{3} = -2\]