Question

x²-18x+81=?. Please answer the question fast.
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Answer 1

Step-by-step explanation:

By Shridhracharya formula,

$x = \frac{ - ( - 18) \pm \sqrt{ {( - 18)}^{2} - 4 \times 1 \times 81} }{2}$

$x = \frac{81 \pm \sqrt{324 - 324} }{2}$

$x = \frac{81 }{2} \: \: an d \: \: \frac{81}{2}$