(3x²+6x+9)(8x-4)= 24x³-12x²+48x²-24x+72x-36= 24x³+36x²+48x-36
R: E
Answer:
We know that the value of n will be negative.
Step-by-step explanation:
Since 15 is so much larger than 2, we know that the other value on that side would have to be a negative value. Since the coefficient is not negative, we know the variable must be.
9) acute, right, obtuse
10) isosceles, obtuse
11) trapezoid
12) 360°
13) 100°
