Which equation involves a prime quadratic and cannot be solved by factoring? A. x2 + 5x − 4 = 0 B. x2 − x − 6 = 0 C. x2 + 3x − 4 = 0 D.

Question

Which equation involves a prime quadratic and cannot be solved by factoring? A. x2 + 5x − 4 = 0 B. x2 − x − 6 = 0 C. x2 + 3x − 4 = 0 D. x2 + 6x + 9 = 0 Reset

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Eva 4 days 2021-10-10T20:39:09+00:00 2 Answers 0

Answers ( )

    0
    2021-10-10T20:40:24+00:00

    Answer:

    x2 + 5x − 4 = 0

    Step-by-step explanation:

    0
    2021-10-10T20:40:44+00:00

    Answer:

    Option A

    Step-by-step explanation:

    We can try to factorize all the options one by one.

    For A:

    x^{2} +5x-4\\=> x^{2}+4x+x-4\\=>x(x+4)+1(x-4)

    We can see that the quadratic expression cannot be solved by factorization as the factors at the end of factorization are not equal in both brackets. So Option A is the correct answer for the given question.

    Moreover we can also note that all the other quadratic expressions can be factorized ..

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