Question

I really need help solving this and can you show all steps...
(2√5+3√7)^2

Answer 1

\[(2\sqrt{5}+3\sqrt{7})(2\sqrt{5}+3\sqrt{7})\]

Answer 2

Use FOIL

Answer 3

2sqrt[5] * 2sqrt[5] = 4sqrt[25] = 4 * 5 = 20

2sqrt[5] * 3sqrt[7] = 6sqrt[35]
2sqrt[5] * 3sqrt[7] = 6sqrt[35]

3sqrt[7] * 3sqrt[7] = 9sqrt[49] = 9 * 7 = 63

20 + 6sqrt[35] + 6sqrt[35] + 63 = 83 + 12sqrt[35]