Question

Si A = 4(3n +5) -5 (3n+7)
B = 3(3n+4) - 2 (3n+2)

Ayudenme porfavor

Answer 1

12n +20..-15n-35
-3n-15

Answer 2

A = 4(3n +5) -5 (3n+7)
A=12n+20 -15n-35
A= -3n-15

B = 3(3n+4) - 2 (3n+2)
B= 9n+12-6n-4
B=3n+8

C= A+B

C= (-3n-15)+(3n+8)
C= -3n-15+3n+8
C= -7