5² + 5x(55+x:5) = 5²
5x(55+x:5) = 0
55+x:5 = 0
x:5 = -55
x = -55x5
x = -275
Răspuns: [tex]\bf\red{\underline{x = -275}}[/tex]
Explicație pas cu pas:
[tex]\bf 5^{4} :5^{2} +5\cdot(55^1+x:5)=5^2[/tex]
[tex]\bf 5^{4-2} +5\cdot(55+x:5)=25[/tex]
[tex]\bf 5^{2} +5\cdot(55+x:5)=25[/tex]
[tex]\bf 25 +5\cdot(55+x:5)=25[/tex]
[tex]\bf 5\cdot(55+x:5)=25-25[/tex]
[tex]\bf 5\cdot(55+x:5)=0~~\bigg|:5[/tex]
[tex]\bf 55+x:5=0[/tex]
[tex]\bf x:5=-55~~~\bigg|\cdot5[/tex]
[tex]\bf\red{\underline{x = -275}}[/tex]
