Answer:
34
Step-by-step explanation:
Plus 16 on both side and negative 12plus 16 is 4 so x equals 4
Answer:
Step-by-step explanation:
x² - 12x + a = (x + b)²
x² - 12x + a = x² + 2xb + b²
-12 = 2b and a = b²
b = -6
a = b² = 36
Answer:
x1= -7 , x2= 1
Step-by-step explanation: