Bonjour
A= (5√2-3)(5√2+7)
A = 25(v2)^2 + 35v2 -15v2 -21
A = 25(2) + 23v2 -21
A = 50 + 23v2 -21
A = 23v2 +29
B=(1-3√5)²
B = 1 -6v5 +9(v5)^2
B = 1 -6v5+ 9(5)
B =1 -6v5 +45
B =. -6v5 +46
bonjour
A = ( 5 √2 - 3) ( 5√2 + 7 )
= 25√4 + 35 √2 - 15 √2 - 21
= 50 + 35 √2 - 15 √2 - 21 = 29 + 20 √2
B = ( 1 - 3 √5)² = 1 - 6 √5 + 45 = 46 - 6 √5
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Bonjour
A= (5√2-3)(5√2+7)
A = 25(v2)^2 + 35v2 -15v2 -21
A = 25(2) + 23v2 -21
A = 50 + 23v2 -21
A = 23v2 +29
B=(1-3√5)²
B = 1 -6v5 +9(v5)^2
B = 1 -6v5+ 9(5)
B =1 -6v5 +45
B =. -6v5 +46
bonjour
A = ( 5 √2 - 3) ( 5√2 + 7 )
= 25√4 + 35 √2 - 15 √2 - 21
= 50 + 35 √2 - 15 √2 - 21 = 29 + 20 √2
B = ( 1 - 3 √5)² = 1 - 6 √5 + 45 = 46 - 6 √5