9ycube +2ysquare+y+7 when y=-1
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Answer:
your answer : -1
Step-by-step explanation:
9 * -1^3 + 2 * -1^2 + ( -1 ) + 7
9 * -1 + 2 * 1 - 1 + 7
-9 + 2 - 1 + 7
- 7 + 6
-1
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