Solve the polynomial. x^3 + 4x^3 - 11x - 30 = 0

The answer is approximately 2.21456

Step-by-step explanation:

1. You simplify your equation to:

5x^3-11x-30=0

2. Now you can use the Newton Raphson method to solve this problem.

The Newton Raphson method can be used by calculating x + 1 until its delta turns into something below 0.00001, and the x value is your answer.

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18

goog may have it for you