Question

what are the root of the quadratic equation x²=9 ?​

Answer 1

Step-by-step explanation:

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Answer 2

Given:

• x² equals 9

To Find:

• root of the equation

Solution:

$\tt{x}^{2} = 9 \: \: \: \: \\ \\ \tt x = \sqrt{9} \: \: \\ \\ {\pink{\boxed{\tt{ \: x = 3}}}} \: \: \: \:$

Verification:

let's put 3 in the place of x the check weather it satisfies the equation:

$: \implies \sf \pink { {x}^{2}} = 9 \\ \\ : \implies \sf \pink { {3}^{2} } = 9 \\ \\ : \implies \sf \pink {9} = 9$

$\huge{ \bf{ \orange{hence \: verified}}} \huge{ \orange {\dag}}$

$\sf \red{ - @mrcostheta}$