kleinzoe000 kleinzoe000

06-05-2020
Mathematics

contestada

(5x-6)^2=25x^2-60x+36. Where did the -60x come from?

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

06-05-2020

Answer:

see below

Step-by-step explanation:

(5x-6)^2

This means

(5x-6)*(5x-6)

FOIL

First: 5x*5x = 25x^2

outer: 5x*-6 = -30x

inner -6*5x = -30

last -6*-6 = 36

Add these together

25x^2 -30x-30x +36

Combine like terms

25x%2 -60x+36

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