# New post in Algebra-precalculus

## Find the value of p for which the function f(x)=$\left(\frac{\sqrt{p+4}}{1-p}-1\right)x^{5}-3x+ln5$ decreases $\forall$x $\in\mathbb{R}$

August 19th, 2022

## If 1/(a+b) = 1/a + 1/b , what is the solution for z=a/b?

August 18th, 2022

## how to solve this inequiality $xyz ⩾ (x+y-z)(y+z-x)(z+x-y)$

December 23rd, 2022

## how to prove that $a^5+b^5+c^5\ge abc(ab + bc + ca)$

December 20th, 2022

## Rationalize the denominator with 4 terms $\frac{1}{1+\sqrt{12}-\sqrt[3]{3}-\sqrt[3]{9}}$

December 1st, 2022

## Algebra manipulation: given $x+y = xy = 3$, evaluate $x^3 + y^3$

August 16th, 2022

## Finding the coefficient of $x^4$ in this expansion

August 16th, 2022

## When to use the plus or minus sign and absolute value when squaring an equation?

November 24th, 2022

July 23rd, 2022

## Count the license plates possible with 4 letters and 2 digits

November 11th, 2022

## Catherine is now twice as old as Jason but 6 years ago she was 5 times as old as he was. How old is Catherine now?

November 6th, 2022

## composition of function backwards

October 14th, 2022

August 1st, 2022

## What is the remainder when a polynomial $g(x^{12})$ is divided by $g(x)$?

October 12th, 2022

July 22nd, 2022

July 22nd, 2022

## What does $\cos(2\tan^{−1} x)$ mean and how do solve?

August 31st, 2022

## How to multiply, divide, add and subtract fractions

August 18th, 2022

August 1st, 2022

## Let a,b,c,d real numbers such that $|a-b|=2,|b-c|=3,|c-a|=4.$Then the sum of all possible values of $|a-d|$is...

November 3rd, 2020

## Maximum minimum value of a modulus function

February 4th, 2020

August 1st, 2022

August 1st, 2022

August 1st, 2022

## How to calculate the modulus of a complex number?

April 17th, 2020

August 28th, 2020

March 19th, 2020

August 1st, 2022

August 1st, 2022

June 3rd, 2020