Find the square.(0.7x + 0.3)2
A. 0.49x2 - 0.42x - 0.09
B. 0.49x2 + 0.09
C. 0.49x2 - 0.42x + 0.09
D. 0.49x2 + 0.42x + 0.09
Answer: D
Mathematics
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