tentukan nilai x jika di ketahui a.2x+5=10 b.x2-5x-6

Bab Aljabar
Matematika SMP Kelas VIII

a] 2x + 5 = 10
2x = 10 - 5
x = 5/2

b] x² - 5x - 6 = 0
(x - 6) (x + 1) = 0
x - 6 = 0
x = 6

x + 1 = 0
x = -1