Question

X в квадрате-17х =-10х-3-х в квадрате

Answer 1

$x^2-17x=-10x-3-x^2 x^2-17x+10x+3+x^2=0 2x^2-7x+3=0 D=b^2-4ac=49-4*2*3=49-24=25 x_{1} = frac{ sqrt{D-b} }{2a}= frac{5+7}{2*2} = frac{12}{4}=3 x_{2} = -frac{ sqrt{D-b} }{2a}= frac{-5+7}{4} = frac{2}{4}= frac{1}{2}$