brookedoane11201 brookedoane11201

22-05-2018
Mathematics

contestada

coefficient of x^2 in expansion of (x+2)^5

Respuesta :

sqdancefan sqdancefan

22-05-2018

The x² term will be C(5,2)x²·2³ = 80x².

The coefficient is 80.

_____
C(n, k) = n!/(k!·(n-k)!)
C(5, 2) = 5·4/(2·1) = 10

Answer Link

Otras preguntas

What is the greatest danger of being near a volcano when it erupts?

if 80% of a number is 100 what is 20% of that same number

Based on the theory of plate tectonics it is inferred that over the past 250 million years north america has moved toward the

(plz help)Review the following images and indicate the type of body symmetry each animal represents. The options are: Radial Symmetry Bilateral Symmetry and Asy

What is the correct way to write 0.0000250 m in scientific notation?2.50 10–5 m2.5 10–5 m2.50 10–4 m2.5 10–4 m

Why is alcohol classofirs as a depresant drig?wbat os rhe perxwnt pf alcohol on 70 proof liquor?

What would typically be the order of ease of raising capital (from most to least)?

Suppose Cho deposits $200 into a bank account for 3 years. The annual interest rate is 5%. Find the simple interest earned. A. $30 B. $100 C. $10 D. $300

Charlene is looking at a pair of earrings that cost $10 find the total cost of the errands if there's a 15% discount in the sales tax is 8% does it matter if th

Can exposure to formaldehyde vapor from a chemiclave for four years cause a sinus cyst