Question

4x(x+6)-x(elevado a 2)=5x(elevado a 2)

Answer 1

4x(x+6)-x²=5x²
4x²+24x-x²-5x²=0
-2x²+24x=0
-x²+12x=0

fórmula de Bhaskara
x=-b+-√b²-4.a.c/2.a
x=-12+-√12²/2
x=-12+-12/2

X1= -12+12/2=0

X2= -12-12/2= -24/2=-12