Which of these expressions have negative values? Select all that apply. 2= 21-3)
-227-9)-4
(14--2)(-6)
(4-10) -(8+(-2))

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.