Question

4x²-20x+25=0 ecuacion cuadratica completa

Answer 1

4x² - 20x + 25 = 0

$X= \frac{-b+/- \sqrt{b^{2}-4ac } }{2a}$

Donde:

a= 4;  b = -20;  c = 25

x= $\frac{-(-20)+/- \sqrt{20^{2}-4(4)(25) } }{2(4)}$

X = $\frac{20+/- \sqrt{400-400} }{8}$

X = (20 +/- √0)/8 = 20/8 = 5/2

X = (5/2) = 2.5


Rta X = 5/2