Exercise algebra.manipulation.exponents.equation

Description
solve power equation algebraically with x > 0

Derivation

7/10*x^4-13/10 == 2

⇒ algebra.equations.coverup.minus-left

7/10*x^4 == 33/10

⇒ algebra.equations.coverup.times

x^4 == 33/7

⇒ algebra.manipulation.exponents.equation.nth-root

x == root (33/7) 4

⇒ algebra.manipulation.exponents.equation.approx-power

x ~= 1.47