Kathleen
Kathleen
30-12-2016
Mathematics
contestada
Find the difference. (-ab+8a-5)-(-8ab-4)
Respuesta :
vikki101
vikki101
30-12-2016
(
−a
)
(b)
+
8a
−5
−
(
(
−
8a
)
(b)
−4
)
So first
Distribute the Negative Sign:
=
(
−a
)
(b)
+
8a
−5
+
−1
(
(
−
8a
)
(b)
−4
)
=
(
−a
)
(b)
+
8a
+
−5
+
−1
(
(
−
8a
)
(b)
)
+
(
−1
)
(
−4
)
=
(
−a
)
(b)
+
8a
+
−5
+
8a
b
+4
=
−
ab
+
8a
+
−5
+
8a
b
+4
Then after all of that
Combine Like Terms:
=
−
ab
+
8a
+
−5
+
8a
b
+4
=
(
−
ab
+
8a
b
)
+
(
8a
)
+
(
−5
+4
)
So now your answer is
=
7a
b
+
8a
+
−
1
Answer Link
texaschic101
texaschic101
30-12-2016
-ab + 8a - 5 -(-8ab - 4) =
-ab + 8a - 5 + 8ab + 4 =
8a + 7ab - 1 <===
Answer Link
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