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A: Solve the following equation:

k2 + 4k = 0

A: By factoring

B: By using the quadratic formula

D: Do the results in A, B, differ from each other? Why or Why not?

  • math -

    You must mean
    k^2 + 4k = 0

    factoring:
    k(k+4) = 0
    so k=0 or k= -4

    formula:
    x = (-4 ± √(16 - 4(1)(0))/2
    = (-4 ± 4)/2
    = 0 or -4

    why should they differ??? Both are valid methods.

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