ny01282005
07.07.2019 •
Mathematics
Which of the following is the correct expansion of (x - 2)(x - 5)? x2 + 7x + 10 x2 + 7x - 10 x2 - 7x - 10 x2 - 7x + 10
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Ответ:
Use distributive property:
(a + b)(c + d) = ac + ad + bc + bd
(x - 2)(x - 5) = (x)(x) + (x)(-5) + (-2)(x) + (-2)(-5) = x² - 5x - 2x + 10
(x - 2)(x - 5) = x² - 7x + 10Ответ:
Step-by-step explanation:
25x-25=5(?)
Divide 5 so you get
5x-5=(?)
So I guess C?
Tell me if I'm wrong