Bonsoir,j'aurais besoin d'aide pour cet exercice de math de 3ème,sur les racines carrés,merci de votre aide..
G=7√ 6+√ 24=?
H=√ 98-9√ 2=?
I=4√ 7+2√ 28=?
J=√ 5-2√ 20+3√ 45=?
K=4√ 10+5√ 40-2√ 160=?
G=7√ 6+√ 24=?
H=√ 98-9√ 2=?
I=4√ 7+2√ 28=?
J=√ 5-2√ 20+3√ 45=?
K=4√ 10+5√ 40-2√ 160=?
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Verified answer
BonsoirG = 7 √6 + √ 6 x 4 = 7√6 + 2 √6 = 9√6
H = √2 x 49 - 9 √2 = 7√2 - 9 √2 = - 2 √2
I = 4√7 + 2 √ 7 x 4 = 4 √7 + 2√7 = 6√7
J = √5 - 2 √5 x 4 + 3 √5 x 9 = √5 - 4√5 + 9 √5 = 6√5
K = 4√10 + 5 √10 x 4 - 2 √10 x 16 = 4√10 + 10√10 - 8√10 = 6√10