Rozwiąż nierówności
(x+3)²-(x+2)²≥ 0
(4-x)²+(2+x)²>2x²
(x+3)²-(x+2)²≥ 0x²+6x+9-(x²+4x+4)≥0
x²+6x+9-x²-4x-4≥0
2x+5≥0
2x≥-5
x≥-5/2
x≥-2,5
x∈<-2,5; +∞)(4-x)²+(2+x)²>2x²
16-8x+x²+4+4x+x²>2x²
20-4x+2x²-2x²>0
20-4x>0
-4x>-20
x<5
x∈(-∞;5)
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(x+3)²-(x+2)²≥ 0
x²+6x+9-(x²+4x+4)≥0
x²+6x+9-x²-4x-4≥0
2x+5≥0
2x≥-5
x≥-5/2
x≥-2,5
x∈<-2,5; +∞)
(4-x)²+(2+x)²>2x²
16-8x+x²+4+4x+x²>2x²
20-4x+2x²-2x²>0
20-4x>0
-4x>-20
x<5
x∈(-∞;5)
liczę na naj