Question

Como se resolve isso ?2√196 + 3√225 - ⁴√625

Answer 1

                          4_____
2√196 + 3√225 -   √625

                     4 ______
                            4
2.14 + 3.15 -  √ 5

= 2.14 + 3.15 - 5

= 28 + 45 - 5

= 28 + 40

= 68
******************************

√196 = 14

196: 2
98: 2
49: 7
7: 7
1       =   2.2.7.7 = √4.√49 = 2.7 = 14

√225 = 15

225: 3
75: 3
25: 5
5: 5
1         = 3.3.5.5 = √9.√25 = 3.5 = 15

            4
625 = 5    =  5.5.5.5 = 625


625: 5
125: 5
25: 5
5: 5
1

Answer 2

$2 \sqrt{196} + 3 \sqrt{225} - \sqrt[4]{625} }$ =
2 . 14  +  3 . 15 - 5 =
28 + 45 - 5 =
73 - 5 =
 = 68