Question

Решите уравнение:
1(х+3)(3-х)=3

Answer 1

1=3(х+3)(3-х)
1=-3(х+3)(х-3)
1=-3(х*2-9)
1=-3х*2+27
-3х*2=-26
3х*2=26
х*2=26/3
х=+-√26/3

Answer 2

1(х+3)(3-х)=31=3*(x+3)(3-x)
1=9x-9x²+27-9x

1=-9x²+27
9x²=26
x²=26/9
x=√26/9