Describe the nature of the roots of this equation . 2x ^ 2 - x + 1 = 0 A. Two real, rational roots B. Two real, irrational roots C. Two non- real roots C. One real, double root

Step-by-step explanation:

b²-4ac

(-1)²-4(2×1)

1-8

-7

Now -7<0 therefore it has two complex roots or nonreal roots

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!