briannasolis2875
Answered

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-3[10-(3-8)+4-2²-3(4-9)]​

Sagot :

−3(10−(3−8)+4−2²-−3(4−9))

=−3(10−(−5)+4−2²-−3(4−9))

=−3(15+4−2²-−3(4−9))

=−3(19−2²-−3(4−9))

=−3(19−4−3(4−9))

=−3(15−3(4−9))

=−3(15−(3)(−5))

=−3(15−(−15))

=(−3)(30)

=−90

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