Объяснение:
2×2=4, 4-3x+1=2. 2>0
4×2=8, 8+4x=12, 12+3=15. 15>0
2×2=4,4-5= -1+3=4. -4<0
3×2=6,6+10x=16x.16x<0
-x2+16x=18x. 18x-28=10x. 10x>0
-x2+4x=6x, 6x-3= -x3. -x3<0
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Answers & Comments
Объяснение:
2×2=4, 4-3x+1=2. 2>0
4×2=8, 8+4x=12, 12+3=15. 15>0
2×2=4,4-5= -1+3=4. -4<0
3×2=6,6+10x=16x.16x<0
-x2+16x=18x. 18x-28=10x. 10x>0
-x2+4x=6x, 6x-3= -x3. -x3<0