18. (X - 5)2– (x + 2)2 = -2
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Answer:
HEY MATE...
2X - 10 - 2X + 4 = -2
+2X & -2X GETS CANCELLED
SO NOW , -10 + 4 = -2
-6 = -2
6 = 2
THERE MUST BE SOME SIGN CHANGE I GUESS...
PLS...REPOST THE QUESTION...
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