Question

Simplify the sum.
7/(a+8) + 7/(a^2 - 64)

Answer 1

Okay so notice that the bottom of the second fraction is infact the "difference of two squares" i.e. (a^2-64)=(x-8)(x+8), then multiply the first fraction by x-8 so that you have equal denominators then you may add them together simply and simplify if nessecary

Answer 2

What is the lcm of a+8 and a^2-64?

Answer 3

64?

Answer 4

You play AnimalJam?

Answer 5

a+8=1*(a+8)
a^2-64=(a+8)(a-8)

Answer 6

.-. Thats wha aj stands for

Answer 7

aj??

Answer 8

^ nvm

Answer 9

aj u there?

Answer 10

yup I am

Answer 11

oh ok so that answer i will is C or D

Answer 12

??

Answer 13

:| Silence

Answer 14

Lcm of a+8 and a^2-64 is a^2-64
a^2-64=(a-8)(a+8)
So the common denominator is a^2-64
With vat expression do u need to multiply (a+8) to make it a^2-64?