Question

como resolver essa equação:
x^2/2+8=5x

Answer 1

$\frac{ x^{2} }{2} +8=5 x^{}$

mmc=2

$x^{2} +16=10x^{}$

$x^{2} -10x^{} +16=0$

Δ=b²-4ac
Δ=100-64
Δ=36
√Δ=6

$x'= \frac{10+6}{2} = \frac{16}{2} =8$

$x"= \frac{10-6}{2} = \frac{4}{2}=2$

S={2,8}