Question

Is x^3 + x^5 = x^8? Explain your answer.

Answer 1

This is not true.
When adding variables with different powers, you cannot add them together any further.
If x^3 and x^5 were multiplied, this equation would be true.

Answer 2

You can only add variables of the same power, for example:
2x^3 + 3x^3 + 4x^5 = 5x^3 + 4x^5

Answer 3

Really? Thank you for the help.

Answer 4

No prob.