1)(t-u)^2=t^2-2tu+u^2
2)(n+7)^2=n^2+14n+49
3)(2+5c)^2=4+20c+25c^2
4)(8x-3y)^2=64x^2-48xy+9y^2
5)(4y^2+1)^2=16y^4+8y^2+1
6) (t+p)^2=t^2+2tp+p^2
1)(t-u)^2=t^2-2tu+u^2
2)(n+7)^2=n^2+14n+49
3)(2+5c)^2=4+20c+25c^2
4)(8x-3y)^2=64x^2-48xy+9y^2
5)(4y^2+1)^2=16y^4+8y^2+1
6) (t+p)^2=t^2+2tp+p^2