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23 April, 02:36

Which of the following is equivalent to the expression below?

(a^2 - 2b^2 + 3) - (4b^2 - 5) + (3a^2 + 4)

A. 4a^2 - 6b^2 + 12

B. 4a^2 - 6b^2 + 2

C. 4a^2 + 2b^2 + 2

D. 4a^2 + 2b^2 + 12

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Answers (1)
  1. 23 April, 02:38
    0
    4a^2-6b^2+12

    Step-by-step explanation:

    (a^2 - 2b^2 + 3) - (4b^2 - 5) + (3a^2 + 4)

    distribute the negative sign to each term in the 2nd expression

    a^2-2b^2+3-4b^2+5+3a^2+4

    combine like terms

    4a^2-6b^2+12
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