Question

efectuar: 5x2 – 15x + 3

Answer 1

Explicación paso a paso:

$5 {x}^{2} - 15x + 3 = \frac{5 {x}^{2} }{5} - \frac{15x}{5} + \frac{3}{5} \\ {x}^{2} - 3x + \frac{3}{5} \\ ( {x}^{2} - 3x) + \frac{3}{5 } \\ ( {x}^{2} - 3x + \frac{9}{4} ) + \frac{3}{5} - \frac{9}{4} \\ ( {x - \frac{3}{2}) }^{2} + \frac{12 - 45}{20} \\ ( {x - \frac{3}{2} )}^{2} - \frac{33}{20} \\ ((x - \frac{3}{2} + \frac{ \sqrt{33} }{4} )((x - \frac{3}{2} - \frac{ \sqrt{33} }{5} )$