2x+3x=
X is simply a letter
D must be perpendicular to a because d is parallel to c. c is perpendicular to b. b is parallel to a.
X² + 5x - 24 = 0
x² - 3x + 8x - 24 = 0
x(x-3) + 8(x-3) = 0
(x+8)(x-3) = 0
x+8 = 0 or x-3 = 0
x = -8 x = 3
Answer: x=-8, x=3
Answer:
6.4
Step-by-step explanation:
8.9 - 2.5 = 6.4
8 - 2 = 6
9 - 5 = 4
there you have it your answer 6.4