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= x^2 + x + x + 1
= x^2 + 2x + 1
2. (x+3)(x+3)
= x^2 + 3x +3x + 9
= x^2 + 6x + 9
3. (x+14)(x+14)
= x^2 + 14x + 14x + 196
= x^2 + 28x + 196
4. (x+7)(x+7)
= x^2 + 14x + 49
5. (2x+3)(2x+3)
= 4x^2 + 6x + 6x + 9
= 4x^2 + 12x + 9
6. (x+10)(x+10)
= x^2 + 20x + 100
7. (x+4)(x+4)
= x^2 + 8x + 16
8. (3x+10)(3x+10)
= 9x^2 + 30x + 30x + 100
= 9x^2 + 60x + 100
9. (2x+2)(2x+2)
= 4x^2 + 8x + 4
10. (x+6)(x+6)
= x^2 + 12x + 36
11. (2x+5)(2x+5)
= 4x^2 + 10x + 10x + 25
= 4x^2 + 20x + 25
12. (3x+6)(3x+6)
= 9x^2 + 18x + 18x + 36
= 9x^2 + 36x + 36