Question

What is the answer of this
4x²-225=0

Answer 1

Answer:

$4 {x}^{2} - 225 \\ {x}^{2} = \frac{225}{4} \\ x = \frac{ \sqrt{225} }{\sqrt4} = \frac{15}{2}$

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Answer 2

Answer:

$4 {x}^{2} - 225 \\ 4 {x}^{2} = 225 \\ x = \frac{225}{4} \\ x = \sqrt{ \frac{225}{4} } = \frac{15}{2}$

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