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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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Mathematics
1 year
2021-08-15T00:51:27+00:00
2021-08-15T00:51:27+00:00 2 Answers
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Answers ( )
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!!
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.