Question

Cum se face ecuatia: 5x-12=3x-10+x^2-2\2 ?

Answer 1

5x-12=3x-10+$x^{2}$ - 2/2 
5x-12=3x-10+$x^{2}$ - 1
-$x^{2}$ +5x-3x -12 + 10+1 = 0
-$x^{2}$ + 2x  -1 = 0

Δ= b² - 4ac
Δ= 4-4
Δ= 0

$x_{1,2}$ = $\frac{-b}{2a}$
$\frac{-2}{-2} =\ \textgreater \ x_{1,2} = 1$

Answer 2

5x-3x=2-10+x^2-1
2x-(x×x)=2-10-1
x[2-(1×1)]=-9
x=-9