Solve: 4x^-2 – 3x^-1– 1 = 0

An alien has just landed from the planet, iksnimak. he would like to leam how to add two fractions when thedenominators are the same. write a paragraph that explains to our alien friend, in your own words, the detailsabout how to add the fractions, how to change the result to a mixed number, and how to reduce the fractionpart. use this problem as your example: the two fractions are 5/8 & 7/8

The tile along the edge of a triangular community pool needs to be replaced? ?

Ithink i know it but i want to be sure so can you me out ?