perform the indicated operation
2007-10-07 07:41:07 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Okay you want to F.O.I.L--this was the way I was taught this years ago. I don't know if teachers still teach it this way but, I'll show you anyways. :)
(3m-n) (2m-5n)
F = First terms = 3m * 2m = 6m²
O = Outside terms = 3m * -5n = -15mn
I = Inside terms = -n * 2m = -2mn
L = Last terms = -n * -5n = 5n²
Now, write these down together and simplify:
= 6m² - 15mn - 2mn + 5n²
= 6m² - 17mn +5n²
I hope this helps! =)
Good luck!
Love,
Mary ♥
2007-10-07 07:43:38 · answer #1 · answered by ♥ Mary ♥ 3 · 0⤊ 0⤋
6 m ² - 15 m n - 4 m n + 5 n ²
6 m ² - 19 m n + 5 n ²
2007-10-07 07:45:10 · answer #2 · answered by Como 7 · 2⤊ 0⤋
circulate -5n to the different side so uhave 3n on my own and -5n variations to 5n so 3m=9+5n now u desire to locate m u cant be attentive to its actually value considering that there r 2 unknowns yet u can set equation so m=(9+5n)/3 notice: 3 prolonged m so while u moved it to the different side it replaced to branch u can simplify this m=9/3+5n/3 m=3+5n/3 the two one is wonderful
2016-12-14 10:14:26 · answer #3 · answered by Anonymous · 0⤊ 0⤋
FOIL (first, outter, inner, last)
(3m-n)(2m-5n)
6m^2-15mn-2mn+5n^2
6m^2-17mn+5n^2
2007-10-07 07:47:13 · answer #4 · answered by magpie40353 2 · 0⤊ 1⤋
6m squared - 15mn - 2mn + 5n squared
6m squared -17mn + 5n squared
That's what I got
2007-10-07 08:22:51 · answer #5 · answered by Ms. Exxclusive 5 · 0⤊ 1⤋
That's all. No other side of the equation? How will I know what m and n equal?
2007-10-07 07:45:53 · answer #6 · answered by Palestini Detective 4 · 0⤊ 2⤋