1.

If 2x+13x=5,2x+13x=5, then the value of 5x6x2+20x+15x6x2+20x+1 is?

A. 14141414141414141414114414
B. 16161616161616161616116616
C. 15151515151515151515115515
D. 17171717171717171717117717
Answer» B. 16161616161616161616116616


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