An expression. It can be factored out slightly too:
2x6 + 5x3 - 7x4
= x3(2x3 - 7x + 5)
7x4 equals 28.
What is the additive inverse of the polynomial –9xy2 + 6x2y – 5x3?
5x3 is a pure number, not a length.
15 5x3 prime factorization: 5x3
The answer is: 49