Equations Reducible to Quadratic by Substitution | Learn Math

Equations Reducible to Quadratic by Substitution to Learn Math is made the equations easy to solve by substitution to simplify the equations.

Practice Questions for Equations Reducible to Quadratic by Substitution | Learn Math

Question 1

Solve $$(x+2)^2 – 3(x+2) – 4 = 0$$.

Question 2

Solve $$(x-1)^4 – 11(x-1)^2 + 18 = 0$$.

Question 3

Solve $$(x^2-x)^2 – 18(x^2-x) + 72 = 0$$.

Question 4

Solve $$\displaystyle \Big(x+\frac{1}{x}\Big)^2 + \Big(x+\frac{1}{x}\Big) – 2 = 0$$.