Develloper et reduire:
√3(2-5√3)
5√2(√2-7√18)
(√6+2)√2
2√12(√12-√3+√6)
svp urgent merci
√3(2-5√3)
5√2(√2-7√18)
(√6+2)√2
2√12(√12-√3+√6)
svp urgent merci
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√3(2 - 5√3) = 2√3 - 5√3 * √3
= 2√3 - 5 * 3
= 2√3 - 15
5√2(√2 - 7√18) = 5√2 * √2 - 5√2*7√18
= 5 * 2 - 5*7√36
= 10 - 35*6
= 10 - 210
= -200
(√6 + 2)√2 = √6 * √2 + 2√2
= √12 + 2√2
= √(4*3) + 2√2
= √4 * √3 + 2√2
= 2√3 + 2√2
2√12(√12 - √3 + √6) = 2√12*√12 - 2√12*√3 + 2√12*√6
= 2 * 12 - 2√36 + 2√72
= 24 - 2 * 6 + 2√(36*2)
= 24 - 12 + 2 √36*√2
= 12 + 2* 6*√2
= 12 + 12√2