(3х-8)^2 + (4х-8)(4х+8) + 100х = 9х^2 - 48х + 64 + 16х^2 - 64 + 100х= 25х^2 + 52х = х(25х+52)
Х=-2
-2*(25*(-2) + 52) = -2*(-50+52)= -2*2 = - 4
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(3х-8)^2 + (4х-8)(4х+8) + 100х = 9х^2 - 48х + 64 + 16х^2 - 64 + 100х= 25х^2 + 52х = х(25х+52)
Х=-2
-2*(25*(-2) + 52) = -2*(-50+52)= -2*2 = - 4