What is the constant in the expression 6a+2b+5?

Which statement is true 1.the pythagorean theorem can be used to find the missing side of any triangle 2.the pythagorean theorem can be used to find the missing side of any polygon 3. the pythagorean theorem can be used to find the missing side of any right triangle 4.the pythagorean theorem can be used to find the missing side of any isosceles triangle

Which is the completely factored from of xy^3-x^3y

The parabola opens: y=√x-4 (principal square root) up down right left