5x^2 = - 30x-40 find the zeros

Question

Mathematics

Donte Carney

24 August, 19:18

5x^2 = - 30x-40 find the zeros

+5

Answers (2)

Know the Answer?

Parrish · Answer 1

Parrish 24 August, 19:25

0

The answer is x = - 2 and - 4

Yahir Lawrence · Answer 2

We could rewrite the equation like this:

5x² + 30x + 40 = 0

To find the zeros, let's factor the trinomial:

First factor out the GCF: 5 (x²+6x+8) = 0

Next: 5 (x+2) (x+4) = 0

Now for this to be a true statement. 'x' would have to either be equal to - 2 or - 4.

So the zeros of the equation are x = - 2 and x = - 4