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Find other two zeros of 2xsquare-4x-xsquare+2

Answer»

Your question is WRONG ...the correct question is :- find the two ZEROES of 2x³-4x-x²+2.

Now, ARRANGE it properly:- 2x³-x²-4x+2

Now, factorise the GIVEN expression.

=x²(2x-1)-2(2x-1)

=(x²-2) (2x-1)

Now , equate both the expressions in bracket to 0.

So, we GET:-

x²-2=0

x²=2

X=√2……(1)

2x-1=0

2x=1

x=1/2……(2)

So, the two zeroes are √2 and 1/2.


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