Question

please answer this fast

Answer 1

If -1 is zero of polynomial then
ax^3-x^2+x+-4
Then, a(-1)-(1)+1+4=0
-a-1+1+4=0
-a+4=0
a=4 hence a=4
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Answer 2

Heya !!!!




Given that ,


(-1) is a factor of the given polynomial AX³ - X² + X + 4




P(X) = AX³ - X² + X + 4



P(-1) = A× (-1)³ - (-1)² + (-1) + 4 = 0





=> A × -1 + 1 - 1 + 4 = 0





=> -A + 4 = 0



=> -A = -4




=> A = 4




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