Jefferson evaluated the expression 4^5 + 6^3 , but he made a mistake. His work is shown. 4^ 5 + 6^3 = 5 × 5 × 5 × 5 + 3 × 3 × 3 × 3 × 3 × 3 What is his mistake?

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

How to do this , and can some one explain

The graph of a function f(x)=(x+2)(x-4). which describes all of the values for which the graph is negative and increasing? all real values of x where x< -2 all real values of x where -2