Factor the polynomial using the pattern. x2 – 9x + 20

Question

Factor the polynomial using the pattern.
x2 – 9x + 20

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Hadley 1 week 2021-10-11T13:47:33+00:00 2 Answers 0

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    0
    2021-10-11T13:49:02+00:00

    Answer:

    Answer: To factorize the quadratic expression

    x2−9x+20, one must find the two numbers that add together to give 9, and multiply together to give 20. Those two numbers are 4 and 5, which factor into the expression

    (x−4)(x−5). The signs are due to the fact that the first sign in the expression is a positive, which tells us that both signs must be the same, and the first sign is a negative, which means that, due to the positive sign in the expression, both signs are negative. To do the opposite, expanding, one must multiply

    x by x, to get x2, add together 4 and 5 to get 9, and multiply them to get 20.

    Step-by-step explanation:

    0
    2021-10-11T13:49:13+00:00

    Answer: To factorize the quadratic expression

    x2−9x+20, one must find the two numbers that add together to give 9, and multiply together to give 20. Those two numbers are 4 and 5, which factor into the expression

    (x−4)(x−5). The signs are due to the fact that the first sign in the expression is a positive, which tells us that both signs must be the same, and the first sign is a negative, which means that, due to the positive sign in the expression, both signs are negative. To do the opposite, expanding, one must multiply

    x by x, to get x2, add together 4 and 5 to get 9, and multiply them to get 20.

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45:7+7-4:2-5:5*4+35:2 =? ( )