Question

hep please

Answer 1

@uri

Answer 2

how is that a trinomial?

Answer 3

@evilmath

Answer 4

@blurbendy How is x^2 - 13x + 40 NOT a trinomial?

Answer 5

can someone help please?

Answer 6

oh yeah, trinomial has 3 terms. i was think binomial cuz it had x^2 and x, forgot about that silly constant

Answer 7

@divagirl421 What are two numbers that multiply to 40 AND also add to - 13?

Answer 8

idk;/

Answer 9

Try. Name some factors of 40.

Answer 10

1,40,2,20,

Answer 11

10,4

Answer 12

8,5

Answer 13

@Directrix

Answer 14

@divagirl421

- 8 and -5

So x^2 - 13x + 40 =

x^2 - 8x - 5x + 40=

x(x - 8) - 5(x - 8) =

Note that (x -8) is a factor of both x(x - 8) and - 5(x - 8)

So,

x(x - 8) - 5(x - 8) =

(x - 8) (x - 5)