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Dividing fractions usually confuses students because we don't often see the reason why we use the "keep, change, and flip" ...

Learn how to convert an inequality to a graph and an interval notation. Inequalities, graphs, and interval notations are all closely ...

Learn how to solve the exponential equation with different bases 6^(50-x)=2^50. We will need to use logarithm for this exponential ...

How do we solve the rational inequality 16/x is less than or equal to 2? I will show you three ways! This question is from the 2023 ...

This is a question from my viewer and here's my new take on the square root of 4. I think it really just depends on where you are ...

I actually haven't solved this kind of equation before! The equation tan^-1(x)+tan^-1(2x)=pi/4 involves two inverse tangent ...

This is a number theory problem from the 2023 AS-Level maths exam. We will investigate how to prove q^3-p^3 is NOT never a ...

Learn all the factoring formulas for your algebra and precalculus classes! We will review the formulas for factoring the difference of ...

Most of my precalculus students couldn't solve sqrt(3)*sin(x)-cos(x)=2. Many thought to square both sides first but failed.

Learn to solve quadratic equations by taking the square roots on both sides. We will solve (4x-3)^2=25 and (4x-3)^2=x. Be careful ...