(3х+2)(х-4)=5
3х²-12х+2х-8=5
3х²-10х-13=0
решаем дискриминантом
(10±√(100+4×13×3))/6= -1 или 4 1/3
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(3х+2)(х-4)=5
3х²-12х+2х-8=5
3х²-10х-13=0
решаем дискриминантом
(10±√(100+4×13×3))/6= -1 или 4 1/3