Question

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penjumlahan
1 . (7xy²-9x²y+11xy) dan (5x²y-7xy-3xy²) adalahhh
2...8(1/4p³-5p²+p-3/2) dan 6(5/3-p+7p²-1/2p³)adalahh

pakai proses plisssssssssssssssssssssssssss dijawab

Answer 1

1. (7xy^2 - 9x^2y + 11xy) + (5x^2y - 7xy - 3xy^2) = 7xy^2 - 3xy^2 - 9x^2y + 5x^2y + 11xy - 7xy = 4xy^2 - 4x^2y + 4xy = xy^2 - x^2y + xy

2. 8(1/4p^3 - 5p^2 + p - 3/2) + 6(5/3 - p + 7p^2 - 1/2p^3) = 2p^3 - 40p^2 + 8p - 12 + (10 - 6p + 42p^2 - 3p^3) = 2p^3 - 3p^3 - 40p^2 + 42p^2 + 8p - 6p - 12 +10 = -p^3 + 2p^2 + 2p - 2