The answer is -10x^3+23x^2-24x+18
You just need to plug those expressions inside the formula: it doesn't matter if they're expressions involving a variable instead of plain numbers: the formula becomes

If you want, you can simplify it by expanding the square and then multiply the two parenthesis:

Add up all the numbers the divide by the amount of numbers in the set.
1199/11 = 109
B. 109 answer
Answer:
30 times 10 is 300. 300 times 50 is 15,000.
Step-by-step explanation:
bc i know
Answer:
Step-by-step explanation:
x+5+x+7x-5=180 degree (being the interior angles of a triangle)
9x=180
x=180/9
x=20 degree