33-4(2x-1)=5(3-2x)
33-8x+4=15-10x
-8x+10x=15-33-4
2x=-22
x=-22/2
x=-11
Ответ:x=-11
У'(х) = (х²+3)'sinx + (x²+3)sin'x=2xsinx+cosx(x²+3)
x1²-x2²=24
x²-6x+c=0
D=36-4c √D=2√(9-c)
x1=(6+2√(9-c))/2 x2=(6-2√(9-c))/2
x1=3+√(9-c) x2=3-√(9-c)
(3+√(9-c))²-(3-√(9-c))² =24
(3+√(9-c)-3+√(9-c))*(3+√(9-c)+3-√(9-c))=24
2√(9-c) *6=24
12√(9-c)=24
√(9-c)=2
9-c=4
c=9-4
c=5
ответ: с=5