в

2(3x-5)(x-1)-3(1-(2x+1)(3-x)+(4-x)/2)<13

2(3x²-3x-5x+5)-3(1-(6x-2x²+3-x)+(4-x)/2)<13

6x²-6x-10x+10-3(1-6x+2x²-3+x+(4-x)/2)<13

6x²-16x+10-3+18x-6x²+9-3x+(-12+3x)/2<13

-x+16+(-12+3x)/2<13 |*2

-2x+32-12+3x<26

x<6

а

(3-√10)(2x-7)<0 |:(3-√10)  

2x-7>0

2x>7 

x>7/2 

г

(1-√2)(4-5x)≤√2/(2+√2) |:(1-√2)  

4-5x≥√2/(2+√2)(1-√2)

4-5x≥√2/(2-2√2+√2-2)

4-5x≥√2/-√2

4-5x≥-1

-5x≥-5

x≤1