Try this solution:
1. according to the condition

2. for more details see the attached graph.
Answer: [0;+oo)
Answer:
x = 33
Step-by-step explanation:
If we called the unknown number is x, we got:
Twice number 19 = 19 * 2 = 38
Because five less than 38 is x so x would be:
38 - 5 = x
33 = x
x = 33
Hope this helped :3
Answer:
125x³+240xy²+64y³
+300yx²
Step-by-step explanation:
Row of pascals triangle to use is 1 3 3 1
For binomial expansion, use a³ +3a²b+3ab²+b³