Find the discriminant and the number of real roots for this equation. x2 + 2x + 7 = 0
A. 28; two real roots
B. -24; no real roots
C. -24; one real root
D. 28; one real root
SB

The areas of the squares adjacent to two sides of a right triangle are shown below. 3 3 units 2 33 units 2 4 4 units 2 44 units 2 ? ? what is the area of the square adjacent to the third side of the triangle?

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. what is the resulting expression? (4x2 + 3)(x2 – 5) (4x2 – 3)(x2 – 5) (4x2 – 5)(x2 + 3) (4x2 + 5)(x2 – 3)

Which of the following best describes the delian problem?