X = 5. Since the shape is a rectangle. you know those opposite sides will be equal in length. So you have to set the two terms equal to each other and then solve for x.
I have attached a picture of the work.
I hope this helps. (:
Answer:
–√(7) must also be a root of f(x)
Step-by-step explanation:
Given that the roots of an equation is 3 and √(7). This means that x = 3 or √(7). Therefore, the function is definitely going to be:
f(x) = (x – 3)(x² – 7)
This is because we are dealing with √(7) and what brought about √(7) was x² = 7.
If this is the case, we know that x² = 7 will give
x = ±√(7)
Hence, our roots are x = 3 or √(7) or –√(7). Therefore, –√(7) must also be a root of f(x).
Answer:
9
Step-by-step explanation:
new formula : (5 - 2) ^2
So 5- 2 equals 3. And 3 to the second power is 9
