1.

Which of the following factorizations is incorrect?

A.  \[200{{y}^{2}}-2=2(10y+1)\,(10y-1)\]
B.  \[49{{x}^{2}}-36=(7x+6)\,(7x-6)\]
C.  \[200{{y}^{2}}-2=2(10y+1)\,(10y+1)\]
D.  \[36-100{{k}^{2}}=(6+10k)\,(6-10k)\]
Answer» D.  \[36-100{{k}^{2}}=(6+10k)\,(6-10k)\]


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