Multiply, using the vertical method. (m + 3n)(m^2 - 3mn + 9n^2)
Multiply. 6m(3m - 2)(3m - 7)
2007-03-03 17:56:08 · 3 answers · asked by djlurch52@sbcglobal.net 1 in Science & Mathematics ➔ Mathematics
i am not sure what you mean by the vertical method, but i can distribute each of them.
1. (m+3m)(m²-3mn+9m²)
m³-3m²n+9m³+3m³-9m²n+27m³
combine like terms
2. 6m(3m-2)(3m-7)
6m(9m²-21m-6m+14)
54m³-126m²-36m²+84m
combine like terms
2007-03-03 18:33:35 · answer #1 · answered by Winnie 3 · 0⤊ 0⤋
Question 1
m³ - 3m².n + 9m.n²
-----+3m².n - 9m.n² + 9n³
m³ + 9n³ ( I can but hope that this is the vertical method!)
Question 2
6m.(9m² - 27m + 14) = 54m³ - 162m² + 84m
2007-03-04 02:30:03 · answer #2 · answered by Como 7 · 0⤊ 0⤋
the second one is 36m squared minus 54m
2007-03-04 02:01:37 · answer #3 · answered by Lola 2 · 0⤊ 0⤋