Question

write the cubic polynomial whose zeros are 2,1 and 1​

Answer 1

Answer:

there is

345

Step-by-step explanation:

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Answer 2

Answer:

Let the zeroes be α, β & y

α = 2      β= 1      y= 1

p(x) = x³ - ( α+β+y )x² + ( αβ+βy+yα )x - (αβy)

p(x) = x³ - (2+1+1)x² + ( 2×1 +1×1 + 1×2 )x - ( 2×1×1 )

p(x) = x³ - 4x² + 5x -2

Hope it helps.