5)The graph of f is given. State the numbers at which f is not differentiable

Find the point on the line $y=5x+2$ that is closest to the origin.

Complex number equation ${\displaystyle x^2+x+(1-i)=0}$ is there any easy way to solve the following equation: ${\displaystyle x^2+x+(1-i)=0}$

An inequality constraint problem
${\displaystyle min\frac{1}{2}{(x_1-1)}^2+\frac{1}{2}{(x_2-2)}^2}$
s.t. ${\displaystyle x_1-x_2=1\text{and}{x}_1+x_2\le 2}$

Why do you think we should learn about quadratic equations? how are they different from linear equations, and what is the significance of quadratic equation in the business world. Make sure you provide very specific examples to help us understand your explanation.

Write the prime factorization of 280 using exponents.

Solve the equations and inequalities. Write the solution sets to the inequalities in interval notation.
${\displaystyle 5\le 3+|2x-7|}$

Solve the following absolute value equation by first isolating the absolute value expression. Make sure to find all values of x.
5|x|-7=33