i really need help on this one math problem...
simplify.
(-6b)(-3c)-(-9a)(7b)
2007-08-31 07:56:53 · 8 answers · asked by cali hollister chick 1 in Science & Mathematics ➔ Mathematics
(-6b)(-3c)-(9a)(7b)
18bc -63ab
9b(2c - 7a)
2007-08-31 08:03:58 · answer #1 · answered by lenpol7 7 · 1⤊ 0⤋
18 b c + 63 a b
2007-08-31 08:21:17 · answer #2 · answered by Como 7 · 0⤊ 0⤋
(-6b)(-3c) - (-9a)(7b)
18bc + 63ab
Negative Multiplied by a negative is a positve.
2007-08-31 08:08:40 · answer #3 · answered by boombabybob 3 · 0⤊ 0⤋
= ([- 6b] * [- 3c]) - ([- 9a] * [7b])
= (18bc) - (- 63ab)
= 18bc + 63ab
2007-09-04 04:49:44 · answer #4 · answered by Jun Agruda 7 · 3⤊ 0⤋
(-6b)(-3c)-(-9a)(7b)
(18bc)-(-63ab)
9b(2c+7a)
2007-08-31 08:08:33 · answer #5 · answered by bmattj121 4 · 0⤊ 0⤋
(18bc)-(-63ab)=
18bc + 63ab=
3b(6c+21a)
2007-08-31 08:04:34 · answer #6 · answered by tonysae 2 · 0⤊ 1⤋
(18bc) - (-63ab)
18bc + 63ab
2007-08-31 08:01:43 · answer #7 · answered by Merlyn 7 · 0⤊ 1⤋
(18bc)-(-63ab)
18bc+63ab
2007-08-31 08:02:31 · answer #8 · answered by 2c1villan 2 · 0⤊ 1⤋