## anonymous 4 years ago a21 16 − 9 =

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1. anonymous

please retype. copy-pasting produces visual errors

2. anonymous

a$^{2}$/ 16 - 1/a

3. anonymous

uhh...could you just draw it? there's a draw button below the comment box

4. anonymous

ok |dw:1343003852818:dw|

5. anonymous

simplify this $\frac{a^2}{16}-\frac{1}{a}$

6. anonymous

wait we can't do anything else... right?

7. anonymous

you're not thinking fourth dimensionally lol

8. anonymous

I mean we can rewrite it in a different form but there is no simplification that go any further than the expression we have

9. anonymous

wait there are options maybe thats might helps

10. anonymous

$a ( (a-1/4) (a+1/9)$

11. anonymous

b a^2-1/7