Show that (6a-5b)2 - (6a+5b) ÷ 2ab = - 120
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Answer:
Step-by-step explanation:
(6a-5b)2=12a-10b
then
12a-10b-6a-5b=(6a-15b)÷2ab=120
(6a-15b)=120*2ab
6a-15b=240ab
6a-15b-240ab=0
2a-5b-80ab=0
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