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Talmidge
Talmidge asked in Science & MathematicsMathematics · 8 years ago

Algebra 2 help again pleeeasee?

Please explain how you get the answer and not just tell me what the answers is. Thanks

4√a= √4a+27 (all under radical)

4 Answers

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  • Anonymous
    8 years ago
    Favorite Answer

    4*sqrt(a) = sqrt(4a + 27) square both sides

    16a = 4a + 27

    12a = 27

    a = 27/12 = 2 1/4

  • Dharyl
    8 years ago

    (4√a= √4a+27 (all under radical))^2

    16a=4a+27

    16a-4a=27

    12A=27

    A=27/12

    A=9/4

  • Genuine
    Lv 5
    8 years ago

    it can be written as

    4√a=2√a+27

    4√a-2√a=27

    2√a=27

    √a=27/2

    squaring,,

    a=729/4

    a=182.25

    sorry i misunderstood the question

  • ?
    Lv 4
    5 years ago

    First one, sq. each little thing and the 4 exterior. Leaves you with this: 4t-7 +sixteen=9 2nd one could have this after squaring the two facets: 5x-7=3x+3 ----- 2x-7=3 ---- remedy for x

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