Evaluate the following expression using the values given: Find -3a2 – b3 + 3c2 – 2b3 if a = 2, b = -1, and c = 3.

Question

Evaluate the following expression using the values given:
Find -3a2 – b3 + 3c2 – 2b3 if a = 2, b = -1, and c = 3.

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Nick 1 year 2021-08-19T13:18:58+00:00 1 Answers 6 views 0

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  1. danthu
    0
    2021-08-19T13:20:06+00:00
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    Answer:

    18

    Step-by-step explanation:

    • -3a²-b³+3c²-2b³
    • -3(2)²-(-1)³+3(3)²-2(-1)³
    • -3(4)-(-1)+3(9)-2(-1)
    • -12+1+27+2
    • -11+27+2
    • 16+2
    • 18

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )