Write two equivalent expressions to represent the area of the rectangle below.

answer:

a = 2(n-3)

a = 2n - 6

step-by-step explanation:

length = n-3

width = 2

area = length x width

let area be a

a = (n-3) x 2

a = 2(n-3) > first expression

if we continue to expand the right side of the expression:

a = 2(n-3)

a = 2(n)-2(3)

a = 2n - 6 > second expression

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11