Question

find the squares of the following number using a pattern first 205 2nd 515​

Answer 1

Answer:

Step-by-step explanation:

205[square]= [200+5][sq]

200[sq]+5[sq]+2[200][5]

40000+25+2000

42025

515[sq]=[500+15][sq]

500[sq]+15[sq]+2[500][15]

250000+225+15000

265225