1) a. Socratics, chegg, khan academy
1) b. They all learning apps that help you understand problems if any subject. It also has online tutors to help you.
2. To insert a square root, just type \sqrt and then the Enter or Tab key to insert the square root symbol.
Firstly, multiply both sides by S: 
Next, divide both sides by X, and <u>your answer will be
</u>
Answer:
1 1/8
Step-by-step explanation:
2 1/4/2
9/4 divieded by 2/1=9/8
or 1 1/8
Answer : p(x)= x^2 -x+1
*Mark brainliest*