Question

Simplify 12y^7/18y^-3. Assume y=0

Answer 1

For this case we must simplify the following expression:

$\frac {12y ^ 7} {18y ^ {- 3}}$

We have that by definition of properties of powers, it is fulfilled that:

$a ^ {- 1} = \frac {1} {a ^ 1} = \frac {1} {a}$

Then, we can rewrite the expression:

$12y ^ 7 * 18y ^ 3$

By definition of multiplication properties of powers of the same base we have:

$a ^ m * a ^ n = a ^ {m + n}$

So:

$12y ^ 7 * 18y ^ 3 = (12 * 18) * y ^ {7 + 3} = 216y ^ {10}$

Answer:

$216y ^ {10}$

When y = 0 the expression is 0

Answer 2

Answer:

its the third one i got that