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Find the difference of (x to the 2nd power plus 28 ) and (9 x to the 2nd power minus 1 ).

A. 8 x squared + 29
B. 8 x squared + 29
C. -8 x squared + 28
D. 8 x squared - 28​


Sagot :

Answer:

8x^2 - 29

Step-by-step explanation: