Question

(4a^2 -64)÷(2a +8) ​

Answer 1

Answer:

a =2

Step-by-step explanation:

taking common 4 from (4a^2 - 64) = 4( a^2-16)

and 2 from (2a+8) = 2(a+4)

4(a^2-16/ 2( a+4)

2(a-4)(a+4) / (a+4). ..... by using [(a^2- b^2) = (a-b)(a+b)]

2a -4 =0

2a= 4

a= 2