solutions to equation x^2 + x – 30 = 12 using zero product property

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solutions to equation x^2 + x – 30 = 12 using zero product property

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Arianna 2 weeks 2021-09-10T14:46:37+00:00 1 Answer 0

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    2021-09-10T14:47:58+00:00

    Answer:

    Our solutions are x= -7 , x=6

    Step-by-step explanation:

    x²+x-30=12

    First we calculate the constants:

    x²+x-30-12=0

    x²+x-42=0

    Now split the middle term:

    x²+7x-6x-42=0

    x(x+7)-6(x+7)=0

    (x+7)(x-6)=0

    As we know that:

    a.b=0

    ⇒either a=0 or b=0

    (x+7)=0 , (x-6)=0

    x=0-7 , x=0+6

    x= -7 , x=6

    So our solutions are x= -7 , x=6….

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