(p+1)2 - (p-1)2= P+9 penyelesaian

Bab Persamaan Kuadrat
Matematika SMP Kelas VIII

(p + 1)² - (p - 1)² = p + 9
p² + 2p + 1 - (p² - 2p + 1) = p + 9
p² + 2p + 1 - p² + 2p - 1 - p = 9
3p = 9
p = 9/3
p = 3

Materi Aljabar

[tex](p+1)^2 - (p-1)^2 = p+9[/tex]
[tex](p^2 + 2p + 1) - (p^2 - 2p + 1) = p + 9[/tex]
[tex]4p = p + 9[/tex]
[tex]3p = 9[/tex]
[tex]p = 9/3 = 3[/tex]