Question

Find the root of the following polynomial equation 5x^2 - 7 = 0
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Answer 1

5x^2 -7=0

5x^2=7

x^2=7/5

x=

$\sqrt{7 \div 5 \}$

Answer 2

$5 {x}^{2} - 7 = 0$

$5 {x}^{2} = 7$

${x}^{2} = \frac{7}{5}$

:.

$x = + \sqrt{ \frac{7}{5} } \: or \: - \sqrt{ \frac{7}{5} }$

this is the answer mate

hope this helps you☺