Answer:
a = 36 , b = -6.
Step-by-step explanation:
x^2 - 12x + a = (x + b)^2
x^2 - 12x + a = x^2 + 2bx + b^2
Equating coefficients:
a = b^2
-12 = 2b
-6 = b.
Plug b = -6 in a = b^2:
a = (-6)^2 = 36.
i agree 36a and -6b i checked with my math teacher
