Question

the zero of polynomial p( x) =√5×x-5 is_____ ​

Answer 1

$\sqrt{5} x - 5 = 0 \\ \\ \sqrt{5} x = 5 \\ \\ x = \frac{5}{ \sqrt{5} }$

By rationalizing the denominator ,,,,

$x = \frac{5}{ \sqrt{5} } \times \frac{ \sqrt{5} }{ \sqrt{5} } \\ \\ x = \frac{5 \sqrt{5} }{ { \sqrt{5} }^{2} } \\ \\ x = \frac{5 \sqrt{5} }{5} \\ \\ x = \sqrt{5}$

Therefore ,,,,

The zero of p(x) = √5x - 5 is √5

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