garrisonparkhurst garrisonparkhurst

23-04-2020
Mathematics

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For which value of b can the expression x2 + bx + 18 be factored?
A.
-19
B.
3
C.
7
D.
17

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Аноним Аноним

23-04-2020

Answer:

A) b = - 19

Step-by-step explanation:

x² - 19x + 18 =

= x² - x - 18x + 18

= x(x - 1) - 18(x - 1)

= (x - 1)(x - 18)

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