Answer:
i got 1) 1 2) 1/a
Step-by-step explanation:
it looks tough but there is a lot of cancelling going on here
1) the left hand side reduces to 1 after you expand out the squared terms
a² - 4ab +b² +4ab / a² + 4ab + b² - 4ab = 1 so you only have
the right hand term needs to be multiplied
(a-b)(a + b)² / (a+b)(a²-b²) the (a + b) cancel
(a-b)(a + b) / (a²-b²)
(a²-b²) / (a²-b²)
1
The whole thing boils down to 1 x 1 = 1
2) is simialar such that when factor the denominator and the numerator lots of terms cancel
it thats too much effort to type but I ended up with 1/a
