Question

4. Factor completely: x^2+8x+15
(x+5)(x+3)
(x-5)(x-3)
(x+15)(x+1)
(x+5)(x-3)

Answer 1

b i promise

Answer 2

Can you explain why?

Answer 3

okay so you need to find factors of 15 that add up to 8

Answer 4

the signs r messed up but its right

Answer 5

3 and 5 are factors of 15 and they add up to 8

Answer 6

so its (x+5)(x+3)

Answer 7

no

Answer 8

yes. It's positive

Answer 9

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0CCUQFjAB&url=http%3A%2F%2Fwww.algebra.com%2Falgebra%2Fhomework%2FPolynomials-and-rational-expressions.faq.question.253899.html&ei=JtYKVdyPFciqggSYiYTIBA&usg=AFQjCNFhf7wkNSRvYoF4etIQ4W7Enlh4qg&bvm=bv.88528373,d.eXY

Answer 10

click that

Answer 11

Okay look. i am actually in this unit in school right now.

Answer 12

you have to find factors of POSITIVE 15 that add up to POSITIVE 8

Answer 13

if you can explain why its B, then i will believe you :)

Answer 14

im not trying to argue but i feel strongly that im right

Answer 15

okay, why?

Answer 16

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0CCUQFjAB&url=http%3A%2F%2Fwww.algebra.com%2Falgebra%2Fhomework%2FPolynomials-and-rational-expressions.faq.question.253899.html&ei=JtYKVdyPFciqggSYiYTIBA&usg=AFQjCNFhf7wkNSRvYoF4etIQ4W7Enlh4qg&bvm=bv.88528373,d.eXY