Answer:
-274
Step-by-step explanation:
Geometric mean =x=<span>√(5 × 20)
=</span>√100
=10
All to one side:
4x^2-32x+64 = 0,
divide by 4:
x^2 -8x + 16 = 0
apply formula or see that it is (x-4)^2!, so only x =4 is a root and it is double.
Answer:
no
Step-by-step explanation:
80-225*1/3=80-75=5
