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02-09-2019
Mathematics

contestada

The value of l-5l -2 l-5l + l-1l is:
A. 4
B. 16
C. -4
D. -16

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Аноним Аноним

02-09-2019

|−5|−(|2|)(|−5|)+|−1|

=5−(|2|)(|−5|)+|−1|

=5−2(|−5|)+|−1|

=5−(2)(5)+|−1|

=5−10+|−1|

=−5+|−1|

=−5+1

=−4

So, the answer is C, -4.

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