Multiply by .

Consider the form . Find a pair of integers whose product is and whose sum is . In this case, whose product is and whose sum is .

Write the factored form using these integers.

Cancel the common factor.

Rewrite the expression.

Multiply the numerator by the reciprocal of the denominator.

Factor out of .

Factor out of .

Cancel the common factor.

Rewrite the expression.

Combine and .

Simplify (1/5*(1c+1))/(1/10*(c^2-2c-3))