Question

simplify:(2 √5+3√2) ^2​

Answer 1

Answer:

65+12√10

Step-by-step explanation:

(a+b)²=a²+b²+2ab

(2√5)²+(3√5)²+2(2√5×3√2)

20+45+12√10

65+12√10

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Answer 2

Step-by-step explanation:

(a+b)²=a²+2ab+b²

a=2√5

b=3√2

4(5)+2(6√10)+9(2)

20+12√10+18

38+12√10

38+12(3.1622)

38+37.9464

75.9464