Answer:

Step-by-step explanation:
Given

Required
The equivalent expression
We have:

Expand

Further expand

Apply laws of indices

Answer:
B² - 4AC < 0
Step-by-step explanation:
Check for:
B² - 4AC
The equations for which
B² - 4AC < 0
have complex roots
For A, B and C, use this form of the quadratic:
Ax² + Bx + C = 0
≈120in
The equation for circumstance is 2πr and one tire is 62.83 so two tiers would be 125.66 or ≈ 120
Answer:

Step-by-step explanation:
Even if I don't know the options I can give all the option that will be right for expending this. Just look at each step and see which one is one of the options.
