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

Question

anonymous · Answer

Plug and chug!

anonymous · Answer

Substitute your letters with its corresponding value

anonymous · Answer

$$2x^2-2z^4+y^2-x^2+z^4$$
Where 
x = -4
y = 3
z = 2
Is this your question?

anonymous · Answer

yea @Johnbc it say find the numerical answer expected

anonymous · Answer

Plug in your numbers for the letters they are equal to and perform the mathematical calculation

anonymous · Answer

when I tried it was wrong

anonymous · Answer

Show you're work and do not forget the order of operations
1. Parenthesis
2. Exponents
3. Multiplication/Division
4. Addition/Subtraction

anonymous · Answer

As well as the rules for positive and negative signs

Addition/Subtraction:
negative and negative = negative
positive and positive = positive
negative and positive = subtraction of positive with negative

Multiplication/Division
negative and negative = negative
positive and positive = positive
negative and positive = negative

anonymous · Answer

$$2(-4^2) - 2(2^4)+(3^2)-(-4^2)+(2^4)= ? $$

anonymous · Answer

nvm thanks