joncc69 joncc69

11-12-2019
Mathematics

contestada

Factor the trinomials
(
1. x2 + 9x + 14

Respuesta :

happyend happyend

11-12-2019

Answer: (x + 2) (x + 7)

Steps:
x^2 + 9x + 14

Find out the factors of 14
14: 1, 2, 7, 14
The factors can both be positive and negative:
14: -1, -2, -7, -14

Find a pair of factors (that makes up 14 when multiplied together), that can be added to make positive 9.
14 = 2 multiply by 7 2 + 7 = 9

First put the x’s down in two different brackets:
(x ) (x )

Now put the numbers in:
(x + 2) (x + 7)

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