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Quadratic Equations

Solve: x2-33...

Question

Solve:
$x^{2} - 33 x + 90 = 0$ .

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Solution

Given,
$x^{2} - 33 x + 90 = 0$
or, $x^{2} - 30 x - 3 x + 90 = 0$
or, $(x - 30) (x - 3) = 0$
or, $x = 30, 3$ .

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