Expand (x - 1÷2y+1÷3z)^2​

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

Find the least common denominator for thesetvo rational expressions.n^2/n^2+4n+4 -3/n^2+7n+10

Miss henderson wants to build a fence around a rectangular garden in her backyard in the scale drawing the perimeter of the garden is 14 in of the actual length of a b is 20 ft how many feet of fencing what you need