Найти числа (-13х+2)^2+x, где x- корень уравнения 7x-5/ x-1=2
(7x-5)/(x-1)=2(7x-5)=2(x-1)7x-5=2x-25x=3x=3/5=0.6(-13*0.6+2)^2+0.6= (-7.8 + 2)^2 + 0.6 = (-5.8)^2 + 0.6 = 33.64+0.6=34.24
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(7x-5)/(x-1)=2
(7x-5)=2(x-1)
7x-5=2x-2
5x=3
x=3/5=0.6
(-13*0.6+2)^2+0.6= (-7.8 + 2)^2 + 0.6 = (-5.8)^2 + 0.6 = 33.64+0.6=34.24