Answer:
the two minus symbols cancel out making it positive 5
Step-by-step explanation:
Combinations of 7 taken 4 at a time.
C (7,4) = 7! /[ 4!(3!)]
7 x 6 x 5 = 210
210 divided by 3 = 70
70 divided by 2 = 35
Answer:
(Factor out 2x from the expression)
2x (x +3)
9x+11-4x+3=24
always combine like terms first. Combine all the x's and all numbers.
5x+14=24
Therefore, the answer is D.
