Question

defection of binomial quadratic surd two to three lines.​

Answer 1

Explanation:

Solve the binomial equation x4 + 81 = 0. A bi-quadratic equation is said to be reducible to quadratic if the variable factor of the leading term is the square of the variable factor in the middle term. and solve as the quadratic equation in the unknown x2 using the substitution x2 = y.