Предмет: Алгебра, автор: jxjdjhg2772515

Помогите решить даю все что есть.

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Автор ответа: namjinsok

a) 4x^2 -3x=0

x (4x-3)=0

x=0 4x-3=0

x=3/4

б) 25-x^2=0

-x^2=-25

x=(+ --)5

г) x2/x+5 =1/4

4x^2= x+5

4x^2-x-5=0

дальше дискриминат

x1= -1

x2= 5/4

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