We will use the Reminder theorem.
The polynomial f ( x ) is divisible by x - a when f ( a ) = 0.
For the 1st one:
f ( - 2 ) = ( - 2 )³ + 7 · ( - 2 )² + 14 · ( - 2 ) + 8 =
= - 8 + 28 - 28 + 8 = 0
For the 2nd one:
f ( 5 ) = 3 · 5³ - 12 · 5² - 4 · 5 - 55 =
= 375 - 300 - 20 - 55 = 375 - 375 = 0
Answer;
1. ( x + 2 )
2. ( x - 5 )
For anyone needing the answers...
<span>There is a focus at (0, 15).
</span>
y = 3/4x<span> is an asymptote.
</span>
<span>y = 27/5 is a directrix.
</span>
are the 3 that are correct.
They would be (x+6) and (x+2).
If you FOIL those out you indeed get x^2+8x+12.
Step-by-step explanation:
by ours to do if the radius
You have to use the rule of three