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Vera_Pavlovna [14]
4 years ago
13

Help………………………!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
antiseptic1488 [7]4 years ago
4 0
It is the bottom one...................................................
Ugo [173]4 years ago
4 0

Answer:d

Step-by-step explanation:(2√7 +3√6) (5√2 +4√3)

To open the bracket, multiply the first rational number (2√7 ) with the two numbers in the other bracket and 3√6 with the other numbers in the other brackets.

2√7(5√2+4√3) + 3√6(5√2+4√3)

Multiply number with number and root with root

10√14 +8√21+15√12+12√18

Then look for the roots which have a perfect number and can be broken down. There is 12 and 18 which have perfect numbers.

10√14 +8√21+(15√4 x√3) +(12√9 x √2)

10√14 +8√21 +15 x 2 x√3 +12 x 3 x √2

10√14+8√21+30√3 +36√2 ans

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