Question

20 points, please help

Answer 1

Answer:

The answer to your question is:    83 + 6$\sqrt{35}$

Step-by-step explanation:

This is a square of a binomial.

                                  (2$\sqrt{5}$ + 3$\sqrt{7} )^{2}$

1.- Square of the first term

                               ( 2$\sqrt{5} )^{2}$ = 4(5) = 20

2.- Twice the product of the two terms

               (2)(2$\sqrt{5} )$(3$\sqrt{7} )$ = 6$\sqrt{35}$

3.- Square of the second term

                              (3$\sqrt{7)})^{2}$ = 9(7) = 63

4.- Write the solution

                           20 + 6$\sqrt{35}$ + 63

                            83 + 6$\sqrt{35}$