Question

which of the following is quadric equation :

(i)
$x {}^{2} + 2 x + 1$
(ii)
$- {2}^{2} = (5 - x)(2x - 2 \div 5)$
(iii)
$(y + 1) {x}^{2} + 3x \div 2 = 7$
where y = -1
(iv)
${x}^{3} - {x}^{2} = {(x - 1)}^{3}$
(v)
$2 {(x - 1)}^{2} = 4 {x}^{2} - 2x + 1$
(vi)
$2x - {x}^{2} = {x}^{2} + 5$
(vii)
${( \sqrt{2x } } + \sqrt{3}) ^ {2} + {x}^{2} = {3x}^{2} - 5x$
(viii)
${( {x}^{2} } + 2x)^{2} {x}^{4} + 3 + 4 {x}^{3}$
​

Answer 1

Step-by-step explanation:

only 8 is quadratic equation

Answer 2

Answer:

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