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Termes semblables: 2·100 + 3·100 = (2 + 3)· 100 = 5· 100 | 
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Go ! $2ab+3ab = 5ab $ $a^2+2a+a+2a^2 = 3a^2+3a $ $2a^2b + ab(a-1) $ = $2a^2b - ab(a-1) $ = $2(a+b)b -(-ab+2b^2)$ = $a(a^4b+a^4b)^0-a$ =
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Termes semblables: 2·100 + 3·100 = (2 + 3)· 100 = 5· 100 |
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Go ! $2ab+3ab = 5ab $ $a^2+2a+a+2a^2 = 3a^2+3a $ $2a^2b + ab(a-1) $ = $2a^2b - ab(a-1) $ = $2(a+b)b -(-ab+2b^2)$ = $a(a^4b+a^4b)^0-a$ =