( x + 2 )³ = x³ – 4 solve the quadratic equation by the method of perfect of the square​

Question

( x + 2 )³ = x³ – 4 solve the quadratic equation by the method of perfect of the square​

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Everleigh 3 days 2021-10-11T14:16:49+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-10-11T14:18:29+00:00

    Answer:

    (x+1)²=-1

    Step-by-step explanation:

    x³+6x²+12x+8=x³-4

    6x²+12x+12=0

    x²+2x+2=0

    (x+1)²+1=0

    (x+1)²=-1

    0
    2021-10-11T14:18:41+00:00

    Answer:

    x^3+6x^2+12x+8=x^3-4

    6x^2+12x+12=0

    x^2+2x+2=0

    (x+1)^2+1=0

    (x+1)^2=-1

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14:4+1-6*5-7*14:3+5 = ? ( )