Respuesta :

Answer:

(x-4) (x-9)

Step-by-step explanation:

x^2 -13x+36

What 2 numbers multiply to 36 and add to -13

-4* -9 = 36

-4+-9 = -13

(x-4) (x-9)

Which two numbers add up to -13 and multiply to 36?

-9 and -4

Rewrite the expression using the above

(x - 9)(x - 4)

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