Question

1. (3x + 7y) (2x - 5y) = ?
2. (5k + 3l) (2k-6l-13) = ?

Pake caranya yaa ! :-)
tbf..

Answer 1

1. (3x + 7y) (2x-5y) =  6x²-15xy+14xy-35y² = 6x² - xy - 35y²
2. (5k + 3l) (2k-6l-13) = 10k²-30kl-65k+6kl-18l²-39l = 10k²-24kl-65k-18l²-39l

Answer 2

1. (3x + 7y) (2x - 5y) = 6x^2 - 15xy + 14xy - 35xy
     = 6x^2 - xy - 35y^2
2. (5k + 3l) (2k - 6l - 13) = 10k^2 - 30kl - 65k + 6kl - 18l^2 - 19l
     = 10k^2 - 30kl + 6kl - 65k - 18l^2 - 19l
     = 10k^2 - 24kl - 65k - 18l^2 - 19l




Maaf kalo salah, kalo bener jadiin jawaban terbaik ya^^ thanks :)