Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.

Consider m^{2}-4. Rewrite m^{2}-4 as m^{2}-2^{2}. The difference of squares can be factored using the rule: a^{2}-b^{2}=\left(a-b\right)\left(a+b\right).

QuickMath will automatically answer the most common problems in algebra, equations and calculus faced by high-school and college students. The algebra section allows you to expand, factor or simplify virtually any expression you choose.

Solve your math problems using our free math solver with step-by-step solutions. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more.

Free math problem solver answers your algebra homework questions with step-by-step explanations.

Solve an equation, inequality or a system.

Symbolab is the best step by step calculator for a wide range of math problems, from basic arithmetic to advanced calculus and linear algebra. It shows you the solution, graph, detailed …

Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.

2014年9月23日 · The solution to the **equation **m - 4 = 2m is m = -4. To solve the equation m - 4 = 2m, we need to isolate the variable m on one side of the equation. Here's the step-by-step solution: Step 1: Start with the given equation: m - 4 = 2m. Step 2: Subtract m from both sides to eliminate the m term on the right side: m - m - 4 = 2m - m. -4 = m.

Online math solver with free step by step solutions to algebra, calculus, and other math problems. Get help on the web or with our math app.