calc((1+e)^2)
Let's calculate: (1 + e)2
ⓘ Raising a sum to a positive integer power means multiplying it by itself as many times as the exponent indicates: (1 + e)2 = (1 + e)×(1 + e)
(1 + e)×(1 + e)
ⓘ Expand using the distributive law, multiplying each term of the sum by the other factor: (1 + e)×(1 + e) = 1×1 + 1×e + e×1 + e×e
1×1 + 1×e + e×1 + e×e
ⓘ Perform multiplications before additions and subtractions: 1×1 = 1■Multiplying powers with the same base adds the exponents: e×e = e2
1 + e + e + e2
ⓘ Like terms are grouped by adding their coefficients: e + e = 2e
1 + 2e + e2
▶Result:   e2 + 2e + 1
The numeric value of: e2 + 2e + 1 is:
≈ 2.71832 + 2×≈ 2.7183 + 1
≈ 7.3891 + ≈ 5.4366 + 1
≈ 12.8256 + 1
▷ ≈ 13.8256