Find the coefficient of x^25 in (1 +x +x^8)^10

The only way to get a term containing is to take 6 copies of 1, 1 copy of , and 3 copies of (since 6+1+3=10, and 6*0+1*1+3*8=25). So this term has a coefficient of

it will be a cylinder. with a diameter of 8 and 4 single pieces high

step-by-step explanation:

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11