Question

Find the zeros of the following quadraticpolynomial:- x2 + 2x - 1 .

Answer 1

hey mate

given here

x^2 +2x -1.=0

by using formula

x=[ - b ± √{b^2-4ac}]/2a

so,

x= [-2±√{4-4×1×-1}]/2

= [-2±√{8}]/2

=( -2±2√2)/2

=-1±√2

take here +ve and -ve sign .

so,if take +ve sign

x= -1+√2

and if take -ve sign

x= -2-√2

thus:

zeroes of polynomial will be

-1+√2 and -1 -√2

I hopes its helps u.

@abhi.

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Answer 2

Answer:

=x²+2x+1

=x²+x+x+1

=x(x+1)+1(x+1)

=(x+1)(x+1)

x+1=0

⇒x= -1

∴zeroes of this polynomial are -1 and -1

Dear.. ur question is wrong there it can't be -1 it shud be +1 that's what I have done..

Step-by-step explanation:

plz mark as brainlist..