Can 3 times the sum of r and d squared minus 2 times the sum of r and d squaredbe simplified

The expression it is simplified as the sum of r and d squared:

(r+d)^2

Step-by-step explanation:

The equation describing the line can be stated as:

3(r+d)^2-2(r+d)^2

As both terms have a repeated factor, the expression can be simplifyed by factorizing with the repeated factor (r+d)^2:

(r+d)^2.(3-2) = (r+d)^2.(1) = (r+d)^2

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.