given that √2 is a zero of the cubic polynomical 6xcube + √2xsquare - 10x-4√2 find its zeroes.
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divide 6x³+√2x²-10x-4√2 by x-√2
we get, 6x²+7√2x+4
on factorisation ,6x²+4√2x+3√2x+4=0
2x(3x+2√2)+√2(3x+2√2)=0
(2x+2√2)(3x+2√2)
we get, 6x²+7√2x+4
on factorisation ,6x²+4√2x+3√2x+4=0
2x(3x+2√2)+√2(3x+2√2)=0
(2x+2√2)(3x+2√2)
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