find all the zeros of the polynomial x power 4 - 7 x^3 + 9 X^2 + 13 x - 4 if two zeros are 2 + root 3 and 2 minus root 3
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{x-2+√3}{x+2-√3}={x-2}²-{√3}²=x²-4x+4-3=x²-4x+1{factor of the polynomial}
divide the polynomial by the factor=quotient=x²-3x-4
split the middle term=x²-1x-4x-4=x{x-1}4{x-1}={x=4}{x-1}
zeroes=1,-4,2=√3,2-√3
divide the polynomial by the factor=quotient=x²-3x-4
split the middle term=x²-1x-4x-4=x{x-1}4{x-1}={x=4}{x-1}
zeroes=1,-4,2=√3,2-√3
tejas0508:
i have not understood
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