Answer:
see explanation
Step-by-step explanation:
Let u = x² ( choice of variable is flexible ), then
4u² - 21u + 20 = 0 ← expressed as a quadratic
This can now be solved for u and converted back into terms of x
Answer:
I'm not pretty sure but I think is the second option, B
Answer:
-155
Step-by-step explanation:
Answer:
2x + 4
Step-by-step explanation:
I'm guessing there are no exact numbers
home = x + 4
school = x
x + x + 4
2x + 4