Question

what are the roots of the quadratic equation X square equal to 9​

Answer 1

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$\huge\underline\mathfrak\blue{solution:-}$

Given quadratic eq. is

$\red\longrightarrow\tt {x}^{2} = 9$

$\red\longrightarrow\tt {x}^{2} - 9 = 0$

$\red\longrightarrow\tt {x}^{2} - {3}^{2} = 0$

$\red\longrightarrow\tt (x - 3)(x + 3) = 0$

Either,

$\green\longrightarrow\tt x - 3 = 0$

$\green\longrightarrow\tt x = 3$

Or,

$\pink\longrightarrow\tt x + 3 = 0$

$\pink\longrightarrow\tt x = - 3$

So reqd. roots are:- 3 and -3

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Answer 2

Answer:hope u understood

Step-by-step explanation: