algebra

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x^2 +16x+64
x^2+16x=64
(x=3)^2=16x-64
16x=-64
x=-4

Check this problem please

  • Please check for typos -

    The first line is not an equation.

    The second line is
    x^2+16x=64
    then if you are completing the square

    x^2 + 16 x + 8^2 = 64 + 8^2
    (x+8)^2 = 128
    x+8 = +/- 8 sqrt 2
    so
    x = -8 +/- 8 sqrt 2 = 8 (-1 +/- sqrt 2)
    or if you really mean
    x^2 + 16 x + 64 = 0
    then
    x^2 + 16 x = -64
    x^2 + 16 x + 64 = -64 + 64 = 0
    (x+8)^2=0
    x+8 = +/- 0
    x = -8

  • algebra -

    Is where the following trinomials perfect squares.
    X^2+16x+64 this is the problem is does not have equal. so could you work this for me please.

  • algebra -

    Oh !!!
    (x+8)(x+8)
    (x+8)^2 = x^2 + 16 x + 64

  • algebra -

    In other words it is not an equation and you do not solve for x.
    The trinomial is the perfect square of (x+8)
    for any x

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