X(x+2)-3=0 please!!!!!!!!!!!!!!!!!!!!!

Question

X(x+2)-3=0 please!!!!!!!!!!!!!!!!!!!!!

Answer 1

X^2+2x-3=0 D=4+12=16  x=-2+6/2=2  x=-2-6/2=-4

Comments

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Answer 2

X(x+2)-3=o -> x^2+2x-3=0
далее дискриминант
а=1 b=2 c=-3
Д=-b^2-4ac=-2^2-4×1×-3= -4+12=8=4^2

x1=-b+√Д/2а=-2+4/2=1
x2=-b-√Д/2а=-2-4/2=-3

Ответ: -3; 1