Question

how to find zeroes of cubic polynomial

Answer 1



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Find one factor that causes the polynomialto equal to zero.

Start by using your first factor, 1. Substitute "1" for each "x" in theequation: (1)3 - 4(1)2 - 7(1) + 10 = 0.This gives you: 1 - 4 - 7 + 10 = 0.Because 0 = 0 is a true statement, you know that x = 1 is a solution.

Answer 2

assume that 3x cube+4x+y=0
x-0x=0
3xcube+4x+y=0
3(0)cube+4(0)+y=0
3+4+y=0
7+y=0
y=-7