Simplify: a^3 - 4a^2 - 5 - (2a^3 + 3)

a3 + -2a3 = -1a3

-8 + -4a2 + -1a3

Step-by-step explanation: I think this is it not 100% sure

Hope this helps :)

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

the answer is 54 sq. ft. i just did this question, on odyssey ware, and it was right. make brainliest.