Question

|x-7-4x-x^2|=-3 помогите

Answer 1

$|x-7-4x-x^2|=-3 \ |7-3x-x^2|=-3 \ left { {{-x^2-3x+7=-3} atop {-x^2-3x+7=3}} right. left { {{-x^2-3x+10=0} atop {-x^2-3x+4=0}} right. left { {{x^2+3x-10=0} atop {x^2+3x-4=0}} right. left { {{(x-2)(x+5)=0} atop {(x-1)(x+4)=0}} right. \ left { {{x_1=2 ; x_2 = -5} atop {x_3=1 ; x_4=-4}} right$

Answer 2

а что после скобок

Answer 3

с право