Multiply the following (5m+7) (3m square-8m+9)
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Answered by
0
Answer:
Given 3m+5n=9 -----(1)
5m+3n=7 -----(3)
multiply eq (1) by 5 and eq (2)by (3) we get
15m+25n=45
15m+9n=21
___________
16n=34. [n=
8
17
]
now form eq (1)
3m=9−
8
5×17
=
8
72−85
=
8
−13
.
m=
24
−13
Now 8m+8n=8(m+n)=8(
24
−13
+
8
17
)=
24
51−13
[8m+8n=
3
38
]
Answered by
0
Answer:
15m³-19m²-26m+63
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