Question

x⁴-34x²+225=0
by quadratic equation ​

Answer 1

Answer:

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Answer 2

${x}^{4} - 34 {x}^{2} + 225 = 0$

Split 34into 25and 9

${x}^{4} - 25 {x}^{2} - 9 {x}^{2} + 225 = 0$

Now take common xsquare from first two and 9 from other two

${x}^{2} ( {x}^{2} - 25) - 9( {x}^{2} - 25)</strong><strong>=</strong><strong>0</strong><strong>$

$( {x}^{2} - 9)( {x}^{2} - 25)</strong><strong>=</strong><strong>0</strong><strong>$

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