Solve x2 + 7x + 6 = 0 for x?

Solve x2 + 7x + 6 = 0 for x

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  • 1 decade ago
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    this is factorable..

    (x+1)(x+6)=0

    and using the zero product rule, which says, A*B=0 if A=0 or B=0..

    upon setting x+1 =0

    and x+6=0

    we get x=-1

    and x= -6

    Source(s): me
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  • 1 decade ago

    x^2 + 7x + 6 = 0

    (x + 1)(x + 6) = 0

    (x + 1) = 0 or (x + 6) = 0

    x = -1 x = -6

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  • 1 decade ago

    I presume that you mean x^2 for the first term.

    It's a 2nd order polynomial and so has two solutions, not necessarily different.

    I'd advise factoring rather than resorting to the lazy person's quadratic formula.

    So, can you think of two numbers whose:

    product is 6

    and

    sum is 7

    ?

    (I'll wait.....)

    So, those two numbers, r1 and r2, are the roots or solutions of the equation:

    x^2+7x+6 = 0

    (x-r1)*(x-r2) = 0

    Ta da....

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  • 1 decade ago

    x^2 + 7x + 6 = 0

    (x+6)(x+1)=0

    x+6=0

    x=-6

    x+1=0

    x=-1

    x=-6, -1

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  • Anonymous
    1 decade ago

    You need to factor the problem:

    (x+6)(x+1)=0

    x=-6 or -1

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