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Find all the zeros Of The …

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Find all the zeros Of The polynomial p(x)=2xrais4 -7xcube-19x sq +14x+30 if two zeroes are √2&-√2

Posted by Yash Sonawane 6 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

Ram Kushwah 6 years, 11 months ago

x-√2and X+√2 are factors

So x^2-2 is factor

On dividing 2x^4-7x^3-19x^2+14x+30 by

x^2-2 we get

2x^2-7x-15=0

(x-5)(2x+3)=0

other two zeros are 5,-3/2

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