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3 years ago

Exercise 30 please , show work

Mathematics

2 answers:

mezya [45]3 years ago

6 0

$-8(2a-3b)-5(6b-4a)=\\
-16a+24b-30b+20a=\\
4a-6b$

ArbitrLikvidat [17]3 years ago

3 0

$-8(2a-3b)-5(6b-4a)=\\=-8 \times 2a -8 \times (-3b)-5 \times 6b-5 \times (-4a)= \\
=-16a+24b-30b+20a= \\
=20a-16a+24b-30b= \\
=(20-16)a+(24-30)b= \\
=4a-6b$

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