Question

Factories

64-(a +12)^2

What will be the process of this question?​

Answer 1

Answer:

64-(a^2+144+2×12×a)=0

64-a^2-144+24a=0

0=a^2-24a+144-64

0=a^2-24a+80

0=a^-20a-4a+80

0=a (a-20)-4 (a-20)

0=(a-4)(a-20)

a=4

Or

a=20