Answer:
The answer is 120
Step-by-step explanation:
Hope it helps
Answer:
(d-3)/2
Step-by-step explanation:
Difference is subtraction
(d-3)/2
Try to understand this. Hope this help. Answer for 2 only.
:) Well, I dunno about anyone else but this question makes my head spin!
In this problem, we need to plug in the given x values for

and find a and b.
When we plug in 1, we get:

Simplify:



We got our first statement about the values of the variables. If we find one more we can find those 2 variables.
We have another given root: 4.
Plug it in:




Now we have our second one. We can combine them:

I use elimination method which is easier here.
Multiply the top equation by -1:

Add them up:

Simplify:

Now we have a, we can plug in one of those equations to find b:



So, the answers are

and

.