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(a+6)^2
(b+4a)^2
(2x+1)^2
(11+y)^2
(6a+2b)^2
(1/2c+b)^2
(x+1/5y)^2
(0.4x+3y)^2
(12a+3)^2
(o.8x+5)^2
(c^3+8)^2
(2a+b^2)^2
(11a^2+2b)^2
(a^4+1)^2
(3x+4y)^2
(4b+9a)^2
(0.5A+60b)^2
(0.2x+0.6y)^2

(a+6)^2= a^2+12a+36(b+4a)^2=b^2+8ab+16a^2(2x+1)^2= 4x^2+4x+1(11+y)^2=121+22y+y^2(6a+2b)^2= 36a^2+24ab+4b^2(1/2c+b)^2=1/4c^2+cb+c^2(x+1/5y)^2=x^2+2/5xy+1/25y^2(0.4x+3y)^2=0.16x^2+2.4xy+9y^2(12a+3)^2=144a^2+72a+9(o.8x+5)^2=0.64x^2+8x+25(c^3+8)^2=c^5+16c^3+64(2a+b^2)^2=4a^2+4ab^2+b^4(11a^2+2b)^2=121a^4+44ba^2+4b^2(a^4+1)^2=a^8+2a^4+1(3x+4y)^2=9x^2+24xy+16y^2(4b+9a)^2=16b^2+72ab+81a^2(0.5A+60b)^2=0.25a^2+60ab+3600b^2(0.2x+0.6y)^2=0.4x^2+0.24xy+0.36y^2