New posts in algebra-precalculus

Prove that $a^4+b^4+1\ge a+b$.

Can someone show me why this factorization is true?

An equation, where the solution does not exist, but on solving the equation we got a solution. why this is happening?

Finding two numbers given their sum and their product

How to solve for $x$ in the equation, $4\sqrt{x-3} - \sqrt{6x-17} = 3$, with two square root terms?

Trigonometric equality: $\frac{1 + \sin A - \cos A}{1 + \sin A + \cos A} = \tan \frac{A}{2}$

Solving $\sin\theta -1=\cos\theta $

Find $x$ in $4^x+6^x=9^x$

Finding double root. An easier way?

7th class question my daughter asked and need answer if possible

How to get inverse of formula for sum of integers from 1 to n? [duplicate]

How do you construct a function that is continuous over $(0,1)$ whose image is the entire real line?

Examples of fallacies in arithmetic and/or algebra [closed]

Show that $(a+b)^7-a^7-b^7=7ab(a+b)(a^2+ab+b^2)^2$

How do 3 fractions having respectively $(a-x)^2$ , $(a+x)^2$ and $(a-x)$ as denominators add up to a fraction having $(a^2 - x^2)^2$ as denominator?

Can the product of two polynomials result in a single term? [closed]

Why does $3^{16} \times 7^{-6}$ become $\frac{3^{16}} {7^{6}}$?

Is it possible to solve this equation by hand?

Proof of Inequality using AM-GM

You roll a die until you get a $5$, what is the expected value of the minimum value rolled?