Question

¿Como puedo resolver esta formula general ?

8x+5=36^2

Answer 1

8x+5=72
8x=67
x=67/8
x=8.387

Answer 2

0=36x²-8x-5

a=36
b=-8
c=-5

x₁=$\frac{-(-8)+ \sqrt{(-8)^{2}- 4(36)(-5) } }{2(36)}= \frac{8+ \sqrt{64+720} }{72}= \frac{8+ \sqrt{784} }{72}= \frac{8+28}{72}= \frac{36}{72}= \frac{1}{2}$

x₂=$\frac{8- \sqrt{784} }{72} = \frac{8-28}{72}= -\frac{20}{72} = - \frac{5}{18}$

Solución: (1/2 , -5/18)

Espero que sirva!Saludos!