Here are two steps from the derivation of the quadratic formula, 2
2
x² + b
& 2 x +
2
2
+
C
2a
6
2a
What took place between the first step and the second step?
O A. Factoring a perfect square trinomial
B. Taking the square root of both sides
C. Completing the square

is there supposed to be a picture here?

2 equivalent expressions to represent the area of a rectangle and the top is n-3 and the side is 2

area of the rectangle = length * width

given length = n - 3

width = 2

replace it in the area

so area of the rectangle = (n-3) *2

= 2(n-3)

one of the expression is 2(n-3)

to get another expression we distribute 2 inside the parenthesis

2(n-3) is 2n - 6

so another expression is 2n - 6

two equivalent expression are

2(n - 3)   , 2n - 6