Question

refer to the attachment ​

Answer 1

Kindly Check The Attachment

Answer 2

$\huge\bold\red{SOLUTION}$$\bold\purple{♡FollowMe♡}$

Hey mate!!!

i) x²+ 3x+1=(x-2)²

x²+3x+1=x²+4-4x

7x -3 =0

it is not quadratic...

ii)(x+2)³=2x(x²-1)

x³+8+6x(x+2)=2x³-2x

-x³+6x²+12x +8 +2x=0

-x³+6x²+14x+8=0

it is not quadatic...

iii)x²-2x=-2(3-x)

x²-2x+6-2x=0

x²-4x+6=0

it is quadratic...

iv)(x+1)²=2(x-3)

x²+1+2x=2x-6

x² +7 =0

it is quadratic....

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HOPE IT HELPS...