Question

the number of quadratic equation having real roots and which do not change by squaring their roots is​

Answer 1

The formula for quadratic equation is
`\sqrt[n]{x+x^(2) } = 0`

Step-by-step explanation:

`ax^(2) + bx + c = 0\\a + b = -(b)/(a) \\ab = (c)/(a)\\\\a^(2) +b^(2) = (c)/(a)\\\\`

when c = 0,

`((b)/(a))^(2) - 2 ((c)/(a))^(2) = - (b)/(a)`

`(b)/(a) [( (b)/(a)) + 1] = 0\\b = 2c`

The formula for quadratic equation is

`x^(2) - (1 + 1)x + 1 = 0\\x^(2) - 2x + 1 = 0\\`

if roots are 1 then,

`x^(2) - x = 0`