The answer is a)
<span>0 imaginary; 3 real
proof
f(3)= = 27-20.9+123.3-216= 216-216=0
so f(x)=(x-3)(ax²+bx+c)=0
after doing euclidean division </span>
<span>ax²+bx+c= (x-8)(x-9)=x²-17x+72
and </span><span><span>x²-17x+72</span> = (x-8)(x-9)
so f(x)=(x-3)</span><span><span>(x-8)(x-9)</span>
f(8)= 8^3-20*64+123*8-216=216-216=0
f(9)=9^3-20*81+123*9-216=0
</span>
X2 + x1 divided by 2. then y2 +y1 divided by 2. = midpoint, I think.
Can you take the picture closer?
Answer:
y = 4x...
Step-by-step explanation:
The answer to <span>9y - 11=7 is y equals 2</span>
