Answer: 1, 3
For a cubic polynomial, there are either 3 real roots or 1 real root nad 2 complex roots in a conjugate pair.
Rewrite it into vertex form with completing the square:
f(x) = x^2 - x + 2 = (x^2 - x) + 2 = (x^2 - x + 1/4) + 2 + 1/4 = (x - 1/2)^2 + 9/4;
So the vertex is (1/2, 9/4).
For all 3 questions, we will use the section formula.
1)
2)
3)
Answer:
Step-by-step explanation:
1) Expand by distributing sum groups.
2) Expand by distributing terms.
3) Collect like terms.
4) Simplify.
Thanks!
- Eddie
Answer:
Step-by-step explanation:
You first equate it to zero to get:
Then solve using square root method
Or
Now work it backwards
Hence the factored form is: