Question

dada as expressões algébrica simplifique-as:
Obs: Preciso da conta ​

Answer 1

b)

$\frac{1}{(a +b )} \cdot \: \frac{1}{(a - b)} \cdot \: ( \frac{ {a}^{2} }{ {b}^{2} } - 1) = \\ \\ = \frac{1}{( \red{{a}^{2} - {b}^{2}}) } \cdot \: ( \frac{ \red{ {a}^{2} - {b}^{2} } }{ {b}^{2} } ) \\ \\ = \boxed{\green{ \dfrac{1}{ {b}^{2} } }}\\\\24\cdot a^{3}.b^{5}.c^2÷4.a^{3}.b^{2}.c=\\\\=6.a^{3-3}.b^{5-2}.c^{2-1}\\\\=6.a^{0}.b^{3}.c^{1}\\\\=6.1.b^{3}.c\\\\ =\boxed{\green{6.b^{3}.c}}$

$\large{\underline{Bons\: Estudos!}}$