Question

solve one quadratic equation in three methods
please answer​

Answer 1

Answer:

1. To examine the nature of roots.

2. solving quadratic equation by factorization .

3. solving quadratic equation using formula.

Step-by-step explanation:

Hope this helps

Answer 2

Step-by-step explanation:

Let the quadratic equation be xsquare+2x+1.

FIRST METHOD:

xsquare+2x+1.

=xsquare+1x+1x+1=0

=x (x+1)+1 (×+1)

=(x+1)=0 and (x+1)=0.

×=minus 1.

SECOND METHOD:

x=minusb plusor minus root of bsquare minus 4ac divided by 2a

=minus2 plus Or minus root of 2wholesquare minus 4(1)(1) divided by 2 (1)

=minus 2 plus or minus root of 4 minus 4 divided by 2

=minus 2 plus or minus root of 0 divided by 2

=minus 2 plus 0 divided by 2=minus 2 divided by 2=minus1

=minus 2 minus 0 divided by 2=minus 2 divided by 2=minus1.

THIRD METHOD:

xsquare +2x=minus 1

xsquare+2x+1=minus 1 +1

x+1 whole square=0

x+1=0 whole square

x+1=0

x=minus 1.