If the roots are irrational the discriminants arent a perfect squre
100:80=5/4
100-20:?=5/4 or 80:?=5/4
80/5=16
16*4=64
80:64
80-64=16
16 band posters.
Answer:
f(2b) = 4b^2 +4b +1
Step-by-step explanation:
Put 2b where x is and simplify.
f(2b) = (2b)^2 +2(2b) +1
f(2b) = 4b^2 +4b + 1
DUse logical reasoning. Combine the totals for cars painted in the first two years (5,000 + 7,213). Subtract 8,201 (cars painted in the third year) from the sum to get the answer.
