Question

Write the exponential expression with only positive exponents.

3 * x^-2

Answer 1

hint : turn it into a fraction.

Answer 2

to change a variable with a neg exponent to positive exponent
take its reciprocal (flip the fraction ) and make the exponent positive

\[3* x^-2 = 3*\frac{ 1 }{ x^2 }= \frac{ 3 }{ x^2 }\]

make sense?

Answer 3

it does, thanx! thanx @timo86m

Answer 4

So would you multiply straight across?

Answer 5

yes, 3 is really 3/1, when multiplying fractions just go straight across

Answer 6

use this rule