x-4 is the correct answer for Apex
(x + 4)(x + 9)
(12x - 6)(12x + 6)
x2-5x-36 = (x-9(x+4) when factored
It is (x - 9)*(x + 4)
36 is the largest factor of 36,
(x - 9)(x - 4)
When factored it is: (x-9)(x+4)
x^(2) + 13x + 36 Factors to ( x + 9)(x + 4) When learning factoring. ;- #1 ; If the coefficient of x^(2) is '1' , as in this case. Then #2 ; Write down all the factors of 36, which are ,1,36 ' 2,18 ' 3,12 ' 4,9 ' 6,6 ; #3 ; Out of these pairs of factors, select a pair that add/subtract to '13'. #5, They are 4,9 ; 4 + 9 = 13 #6 ; Since the quadratic eq;m has positive (+) signs , then all the signs in the brackets are positive(+). When the coefficient of x^(2) is > 1, and/or the signs are different , then different techniques come into play.
-10
x^(2) - 13x + 36 Factors to ( x - 9)(x - 4)
(x + 4)(x + 9)
. x + 4
(x -3)(2x2 + 3x - 4)
(x + 9)(x + 4)
(12x - 6)(12x + 6)
To factor the expression (x^2 + 13x + 36), you need to find two numbers that multiply to 36 (the constant term) and add up to 13 (the coefficient of the linear term). The numbers 9 and 4 meet these criteria, as (9 \times 4 = 36) and (9 + 4 = 13). Therefore, you can factor the expression as ((x + 9)(x + 4)).
x2-5x-36 = (x-9(x+4) when factored