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Please help. collect like terms. 3u⁹v-3uv⁸+4u⁹v-4uv⁸

User Tim Child
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1 Answer

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3u^9v-3uv^8+4u^9v-4uv^8=\\ uv(3u^8-3v^7+4u^8-4v^7)=\\ uv(3(u^8-v^7)+4(u^8-v^7))=\\ uv(3+4)(u^8-v^7)=\\ 7uv(u^8-v^7)
User Jorgen
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