Simplify (12b^4-7b-2)-(3b^4-10b^2-9)

Math
(12b4-7b-2)-(3b4-10b2-9)
Simplify each term.
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Apply the distributive property.
12b4-7b-2-(3b4)-(-10b2)–9
Simplify.
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Multiply 3 by -1.
12b4-7b-2-3b4-(-10b2)–9
Multiply -10 by -1.
12b4-7b-2-3b4+10b2–9
Multiply -1 by -9.
12b4-7b-2-3b4+10b2+9
12b4-7b-2-3b4+10b2+9
12b4-7b-2-3b4+10b2+9
Simplify by adding terms.
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Subtract 3b4 from 12b4.
9b4-7b-2+10b2+9
Simplify the expression.
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Add -2 and 9.
9b4-7b+10b2+7
Move -7b.
9b4+10b2-7b+7
9b4+10b2-7b+7
9b4+10b2-7b+7
Simplify (12b^4-7b-2)-(3b^4-10b^2-9)

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