What am I doing wrong... or even worse, am I doing anything right at all?
Question: (all one question-- two dividing signs for you all to make it easier to read)
3a^2 + 12 / A^4-16
3a^2- 15a / a^2- 3a- 10
My work:
Flip right side, change to multiplication.
3(a^2+4)(A-2a)(A-5)
3a(A-5)(A^2+4)(A^2-4)
= 3(a+2a)
3a(a^2-4)
= 3 (A+2a)
3a (a+2) (A-2)
Question: (all one question-- two dividing signs for you all to make it easier to read)
3a^2 + 12 / A^4-16
3a^2- 15a / a^2- 3a- 10
My work:
Flip right side, change to multiplication.
3(a^2+4)(A-2a)(A-5)
3a(A-5)(A^2+4)(A^2-4)
= 3(a+2a)
3a(a^2-4)
= 3 (A+2a)
3a (a+2) (A-2)