Question

Factorize −18^3 + 18 + 15 using substitution

Answer 1

Given:

The expression is:

`=-18y^3+18y+15y`

Find-:

The factorize of function

Explanation-:

The factor is:

`\begin{gathered} =-18y^3+18y+15y \\ \\ =-18y^3+33y \end{gathered}`

The factor of expression is:

`\begin{gathered} =-18y^3+33y \\ \\ =y(-18y^2+33) \\ \\ =3y(-6y^2+11) \end{gathered}`

The factor is 3y( - 6y² + 11 )