Question

What is 6a squared - 12a+36

Answer 1

6a² - 12a + 36 = 0
a = -(-12) +/- √((-12)² - 4(6)(36))
2(6)
a = 12 +/- √(144 - 864)
12
a = 12 +/- -√720
12
a = 12 +/- -√(9 × 16 × 5)
12
a = 12 +/- -√9 -√16 -√5
12
a = 12 +/- (-3)(-4) -√5
12
a = 12 +/- 12-√5
12
a = 12 +/- 12(-2.236067978)
12
a = 12 +/- (-26.83281573)
12
a = 12 + (-26.83281573) a = 12 - (26.83281573)
12 12
a = 12 - 26.83281573 a = 12 + 26.83281573
12 12
a = -14.83281573 a = 38.832815723
12 12
-1.236067978 a = 3.236067978

Answer 2

6a²-12a+36= 6a²-12a=-36
Put the normal number on the other side to have the variables on one side, and the normal number on the other.
Then group:
= 36a-12a= -36
= 24a=-36
Then isolate a:
= a=-36/24
Then simplify:
=a = - 3/2

Hope this helps!