How to factor ta² -tf² -ra² +rf² by grouping?

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2007-12-23 20:34:09 · 3 answers · asked by tekpek 1 in Education & Reference ➔ Homework Help

ta^2 - tf^2 - ra^2 +rf^2
t (a^2 - f^2) - r (a^2 - f^2)
(t-r) (a^2 - f^2)
(t-r) (a-f) (a+f)

thats how you do that by GROUPING

2007-12-24 07:44:56 · answer #1 · answered by mshaw70123 2 · 0⤊ 1⤋

a^2(t-r)+f^2(t-r)

2007-12-24 12:45:04 · answer #2 · answered by Dave aka Spider Monkey 7 · 0⤊ 2⤋

a2(t-r)+f2(r-t)

2007-12-24 04:43:29 · answer #3 · answered by redgirl 3 · 0⤊ 1⤋