Answer:
1
Step-by-step explanation:
- x²-3y + 12
- (-2)²-3(5) + 12
- 4 - 15 + 12
- -11 + 12
- 1
First you need to solve the stuff in the parenthesis.
8 x 10^4
10^4 = 10,000
8 x 10,000 = 80,000
80,000 x 5 = 400,000
The answer is 400,000
C ÷ D- EXPRESSION
-24÷1/4=-18
24
- 6
---------
18
The answer is negative because when you divide 24 by 4 you get 6. and since the number 24 is negative.you need to subtract 6 from 24 to get -18 which is negative.
P.S:I am a 6th graders who doesn't really understand negatives, but i tried my best and got this answer.
Answer:
(2x - 1)^2
Step-by-step explanation:
We can reverse engineer the solution...
to complete the square, we know (2x + __)^2 will generate the 1st term 4x^2
To generate the 2nd term, we will need -1, so (2x - 1)^2....
When expanded, we will have 4x^2 - 4x + 1, which we completed the square.
