Hi
2n³ + 4n² - 7 + (-n³ - 8n - 2) = 2n³ - n³ + 4n² - 8n - 7 - 2
n³ + 4n² - 8n - 9
Answer: n³ + 4n² - 8n - 9
Answer:
25/4 or 6.25
Step-by-step explanation:
Given that the general equation of a quadratic equation is given as ax^2 + bx + c = 0, to complete the square, we subtract c from both sides of the equation and add the square of (b/2a) to both sides.Hence given x^2-5x-19=0, to complete the square, we add (-5/2)^2 to both sides following the illustration given.This is 25/4 or 6.24
Typically if it is a linear function then it doesn't matter. However if it is a quadratic, cubic, and so on and so forth....(

) you may want to used the distance formula if you are not given any other points (with the exception of the vertex, asymptote or roots... etc).
Answer:
4
Step-by-step explanation:
1 3/5 ÷ 2/5
Change the mixed number to an improper fraction
( 5*1+3)/5 ÷ 2/5
8/5 ÷ 2/5
Copy dot flip
8/5 * 5/2
Rewriting
8/2 * 5/5
4*1
4