Answer:
3u(u - 2)
Step-by-step explanation:
greatest common factor: 3u (both are divisible by 3, and include the variable u)
factor: 3u^2/3u = u; -6u/3u = 2
new polynomial: 3u(u - 2)
3. The answer should be : Yes, the number is written in scientific notation.
4. the answer is : Yes, the number is written in scientific notation.
5. The answer is option 3
5(x + 30)
x + 30 represents the number of minutes per day he practices
5 is the number of days he practices
so 5(x+30) = the total number of minutes he practices in 5 days
For example, if he practices the piano for 20 minutes per day and the violin for 30 minutes per day, he practices a total of 50 minutes per day. For 5 days that would be 5 x 50 = 250 minutes in 5 days.
Plug that into the equation
5(x+30) = 5(20+30) = 5(50) = 250
13x+5=17x-19
13x-17x=-19-5
-4x=-24
4x=24
x=6