(Equivalent Algebraic Expressions MC)Simplify m9m−3. −m12 m6

The expression you provided seems to be a bit unclear. However, if you're asking to simplify an algebraic expression involving exponents, here's a general step-by-step guide:

1. Combine like terms: If you have terms with the same variable and exponent, you can combine them by adding or subtracting the coefficients.

2. Apply the laws of exponents: If you're multiplying terms with the same base, you add the exponents. If you're dividing, you subtract the exponents. If an exponent is raised to another exponent, you multiply the exponents.

3. Simplify any remaining terms: If you have any terms left that can be simplified further, do so.

If you could provide a clearer expression, I'd be happy to help you simplify it!