Use PENDAS it helps a lot.
Answer:
Step-by-step explanation:
Factor it by first setting it equal to 0:
Now subtract 9 from both sides:
Divide both sides by 4:
Then take the square root of both sides:
x = ±
, which of course is not allowed. Therefore, we have to allow for the imaginary numbers in this solution. Knowing that,
x = ±
is an equivalent radicand, we can now replace -1 with its imaginary counterpart:
x = ±
Each one of the elements in the radicand are perfect squares, so we simplify as follows:
x = ±
And there you go!
Answer:
8
Step-by-step explanation:
8 /2
4/2
2/2
1
8 = 2³
24/2
12/2
6/2
3/3
1
24 = 2³ x 3
GCF = 2³ = 8
Answer:
2.5
Step-by-step explanation:
because half of 5 is 2.5
1 hundred = 10 tens
Multiply by 6000.
6000 hundreds = 60,000 tens
