2x³-x²-y²+3 agar x=2y=-1 ho to
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Answer:
it's very simple dear..
Step-by-step explanation:
Just put the values
2x³ - x² - y² +3
2* (2y)³ - (2y)² - (-1/2)²+3 here y = -1/2 by solving
2y = -1 or y = -1/2
2* 8y³ - 4y² -1/4 +3
2* 8* (-1/2)³ -4* (-1/2)² -1/4 +3
16 * (-1/8) -4* 1/4 + 11/4
-2 -1 + 11/4
-3 + 11/4
-1/4
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