elizabethg6702 elizabethg6702

24-03-2020
Mathematics

contestada

12. What is the product of (a-5) and (a+3)?
A. A2-15
B. A2+2a-15
C. A2-2a-15
D. AS-2

Respuesta :

chococoda chococoda

24-03-2020

Answer:C

Step-by-step explanation:

(a-5)*(a+3）

a*a+a*3+(-5)*a+(-5)*3

a^2+3a-5a-15

a^2-2a-15

Answer Link

Officialalehpeter Officialalehpeter

24-03-2020

Answer:

C. a²-2a-15

Step-by-step explanation:

(a-5) (a+3)

Expand the bracket

a(a+3)-5(a+3)

a²+3a-5a-15

a²-2a-15

Answer Link

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