1) (0,4a-5b)²= 0,16a²-4ab+25b²
2) (b²-3)²=b⁴-6b²+9
3) (m³+n²)²= m⁶+2m³n²+n⁴
4) (-5-2a)²= 25+20a+4a²
5) (6pq²-pq²)²= 25p²q⁴
1) (0,4a-5b)²= 0,16a²-4ab+25b²
2) (b²-3)²=b⁴-6b²+9
3) (m³+n²)²= m⁶+2m³n²+n⁴
4) (-5-2a)²= 25+20a+4a²
5) (6pq²-pq²)²= 25p²q⁴