150=(1+x)^4
Forgot how to solve this. Been years since advanced algebra.
This isn’t advanced algebra. It’s basic algebra.
150 = (1 + x)4
Take the fourth root of both sides; the fourth root of 150 is approximately 3.4996.
3.4996 = 1 + x
Subtract 1 ---> x = 2.4996 (approximately)
It’s not that basic, Geno. There are two solutions.
150 = ( 1 + x) ^4 take the positive/negative 4th root
± (150)^(1/4) = 1 + x subtract 1 from both sides
± (150)^(1/4) - 1 = x
The two (real) answers are
x = (150)^(1/4) - 1 ≈ 2.499
Or
x = - (150)^(1/4) - 1 ≈ -4.499