3a 3 +4a 2 -5a-2=0
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3a 3+4a 2-5a-2=0
9a+8a-5a-2=0
17a-5a-2=0
12a-2=0
12a=0+2
12a=2
a is subject,so,
a=12/2
a=6
9a+8a-5a-2=0
17a-5a-2=0
12a-2=0
12a=0+2
12a=2
a is subject,so,
a=12/2
a=6
sonuma:
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