=(D-64)2
We move all terms to the left:
-((D-64)2)=0
We calculate terms in parentheses: -((D-64)2), so:
(D-64)2
We multiply parentheses
2D-128
Back to the equation:
-(2D-128)
We get rid of parentheses
-2D+128=0
We move all terms containing D to the left, all other terms to the right
-2D=-128
D=-128/-2
D=+64
Answer:
A is the correct answer
Step-by-step explanation:
I just did this problem
Answer:
12 years
Step-by-step explanation:
every 4 years, olympic occurs.
Every 6 years, senator reelection.
if last year was 2020
in 2024 olympic will occur
in 2026 the reelection will occur
in 2028 olympic will occur
in 2032 olympic and reelection will occur will occur
2032 - 2020 = 12
12 years is the answer
2ab - 3a = a.(2b-3)
now the same thing
let's say n=1
a.(2b-3) + n.(2b-3) = (2b-3).(a+n)
Understood?
Answer:
27
Step-by-step explanation:
Substitute x = 3 into the expression
2(3)² + 3(3) = 2(9) + 9 = 18 + 9 = 27
