littlejohnjustin53 littlejohnjustin53

17-06-2020
Mathematics

contestada

What is the product?
(5r+2)(3r-4)
O 151+
O 15% -8
O 15p+148-8
O 151²-145-8

Respuesta :

Wishing Wishing

22-06-2020

Answer:

15r²-14r-8

Step-by-step explanation:

Use FOIL for this:

(5r+2)(3r-4)

First: 5r × 3r = 15r²

Outer: 5r × (-4) = -20r

Inner: 2 × 3r = 6r

Last: 2 × (-4) = -8

15r²-20r+6r-8=

15r²-14r-8

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