1. Which expression represents the factored form of x2 – 13x + 36? A (x – 4)(x – 9) B (x – 3)(x – 12) C (x + 9)x – 4

Question

1. Which expression represents the
factored form of x2 – 13x + 36?
A (x – 4)(x – 9)
B (x – 3)(x – 12)
C (x + 9)x – 4)
D (x + 12)(x – 3)

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Thu Thảo 5 months 2021-08-15T00:51:27+00:00 2 Answers 19 views 0

Answers ( )

  1. Adela
    0
    2021-08-15T00:52:30+00:00
    Reply

    Answer: Hello, There! your Answer is Below

    A (x – 4)(x – 9)

    Step-by-step explanation:

    Find p, and q, knowing sum = b = 13 and product c = 36. Compose factor pairs of 36-> (2, 18)(2, 12)(4, 9). this last sum is 9 = b. Then p = 4 and q = 9

    Hope this Helps you!!

    Have a great day!!

  2. kimchi2
    0
    2021-08-15T00:52:52+00:00
    Reply

    The answer is choice A. The middle number, the one with the x, in this case 13, is what the factors should add up to. so, -4 plus -9 equals -13, which is our middle number. the last number, without the x, is what the numbers must multiply to, in this case 36. so, -4 times -9 equals positive 36. So, choice A is the answer.

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )