Civil Rights Act made most forms of racial segregation illegal in the United States.

De jure segregation mandated the separation of races by law, and was the form imposed by slave codes before the Civil War and by Black Codes and Jim Crow laws following the war. De jure segregation was outlawed by the Civil Rights Act of 1964, the Voting Rights Act of 1965, and the Fair Housing Act of 1968.

Step-by-step explanation:

a negative exponent is translated as follows:

so, we have