Complete the square to rewrite y=x^2+6x+3 in vertex form then state whether the vertex is a maximum or a minimum and give its coordinates

Simply 8x squared + 5(7x squared- x) - 2x =

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.