100 Little Knitted Projects

100 Little Knitted Projects

Matematika diketahui persamaan polinom ax⁴-2x⁵+6x³-5x²+x+9=0.Jika X1+x2+x3+x4=-2,maka nilai x1.x2.x3.x4 adalah?plis...bantu pake caranya​

diketahui persamaan polinom ax⁴-2x⁵+6x³-5x²+x+9=0.Jika X1+x2+x3+x4=-2,maka nilai x1.x2.x3.x4 adalah?plis...bantu pake caranya​

Jawaban:

x1+x2+x3+x4 = -b/a

-2 = -(-2)/a

a = -1

x1•x2•x3•x4 = -f/a

= -9/-1

= 9

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