Question

Factor the expression by grouping.5x^3-3x^2-15x+19

Answer 1

`\begin{gathered} \text{ 5x}^3-3x^2\text{ - 15x + 9} \\ \text{ x}^2(5x\text{ - 3) - 3(5x - 3)} \\ (5x-3)(x^2\text{ - 3)} \end{gathered}`

Just look for the common terms of the first two terms, and th common factors of the others two terms.