Express the roots of the equation 2x' =-3(2x + 3)
in a + bi form.

In triangle abc segment de is parallel to the side ac . (the endpoints of segment de lie on the sides ab and bc respectively). find de, if ac=20cm, ab=17cm, and bd=11.9cm;

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

Find the solution of each of the following.