Mark you Brainliest If x1, x2, x3, ..., x8 are the roots of the eighth-degree polynomial, 2x^8+bx^7+cx^6+dx^5+ex^4+fx^3+gx^2+hx+m,

find the value of b when:

x1 + x2 + x3 = 6

x2 + x3 + x4 = 18

x3 + x4 + x5 = 9

x4 + x5 + x6 = −3

x5 + x6 + x7 = −9

x6 + x7 + x8 = −6

x7 + x8 + x1 = −2

x8 + x1 + x2 = 2

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