успростите выражение[tex](4a- \frac{2a}{a+1}) * \frac{a+1}{2a ^{2} } [/tex]. Created by dashanovikova31. algebra-ru

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August 2022 2 10 Report

успростите выражение[tex](4a- \frac{2a}{a+1}) * \frac{a+1}{2a ^{2} } [/tex]

Lesben (4a-(2a)/(a+1)) . (a+1)/(2aˇ2)´=
(4a(a+1)-2a)/(a+1). (a+1)/(2aˇ2)=
=(4aˇ2+4a-2a)/(a+1). (a+1)/(2aˇ2)=
=4aˇ2+2a)/(a+1). (a+1)/(2aˇ2)=
=2a(2a+1)/2aˇ2=(2a+1)/a

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piksaeva85znayka (4а- $\frac{2а}{а+1}$ )× $\frac{а+1}{2 а^{2} }$ =

=4а× $\frac{а+1}{2 а^{2} }$ - $\frac{2а}{а+1}$ × $\frac{а+1}{2 а^{2} }$ =

=2× $\frac{а+1}{а}$ - $\frac{1}{2а}$ = $\frac{2(а+1)}{а}$ -1/2а

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