Respuesta :

Answer and explanation:

[tex]x^{2} + 13x + 42[/tex]

(x + 6)(x + 7)

List the multiples of 42

42: 1  2  3  6  7  14  21  42

Then see which of the multiples add up to 13

1 x 42 = 42 --> 1 + 42 [tex]\neq[/tex] 13

2 x 21 = 42 --> 2 + 21 [tex]\neq[/tex] 13

3 x 14 = 42 --> 3 + 14 [tex]\neq[/tex] 13

6 x 7 = 42 --> 6 + 7 = 13

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