Question

4. Simplificați rapoartele: a²+a a) 7a+7 = - 3m+6 b) m² - 4m+4

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Answer 1

Am atasat rezolvarea

Answer 2

Răspuns:

Explicație pas cu pas:

$\bf a)~~\dfrac{a^{2} +a}{7a+7} =\dfrac{a\cdot\not(a +1)}{7\cdot\not(a+1)} =\purple{\dfrac{a}{7} }$

$\bf b)~~\dfrac{-3m+6}{m^{2}-4m+4} =\dfrac{-3\cdot\not(m-2)}{(m-2)^{\not2}} =\blue{\dfrac{-3}{m-2} }$