- #1

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## Homework Statement

(-3x^2-15x-12)(√5)

## Homework Equations

Quadratic formula?

## The Attempt at a Solution

hmm, i know how to solve the first set of bracets, but what do i do with the radical? how do i multiply it to the polynomial?

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- Thread starter dance_sg
- Start date

- #1

- 113

- 0

(-3x^2-15x-12)(√5)

Quadratic formula?

hmm, i know how to solve the first set of bracets, but what do i do with the radical? how do i multiply it to the polynomial?

- #2

- 42

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so say the factored quadratic is (x-4)(x+4), so the solutions are 4 and -4. just multiply the rad5 to those two answers.

- #3

Mark44

Mentor

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## Homework Statement

(-3x^2-15x-12)(√5)

## Homework Equations

Quadratic formula?

## The Attempt at a Solution

hmm, i know how to solve the first set of bracets, but what do i do with the radical? how do i multiply it to the polynomial?

What are you trying to do here? About all you can do with what you've provided is factor the quadratic or multiply the quadratic by sqrt(5). You are not "solving" the first set of brackets - to solve an equation you first off need an equation, which you don't have.

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