Find the square root of the following polynomials by division method

Matching exercise

    
Match the items on the right to the items on the left.
x4 12x3 + 42x2 36x + 9   
37x2 28x3 + 4x4 + 42x + 9
16x4 + 8x2 + 1
121x4  198x3  183x2 + 216x + 144   
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