Question

Ada yang bisa bantu...
Mohon bantuannya sangat dibutuhkan sekali bantuannya...

Answer 1

Saya bantu 1 dan 3 ya..

1.
3m + 5(m+n) = 1
0 + 5(p+2) = 0
m + 2(m+n) = -5
0 + 2(p+2) = -2

--
2(p+2) = -2
p+2 = -1
p = -3

--
3m + 5(m+n) = 1 => 8m + 5n = 1 => 16m + 10n = 2
m + 2(m+n) = -5 => 3m + 2n = -5 => 15m + 10n = -25
-------------------------------------------------------------------- -
m = 2 - (-25)
m = 27

--
3m + 2n = -5
3(27) + 2n = -5
81 + 2n = -5
2n = -86
n = -43

--
m - n + p = 27 - (-43) - 3 = 67



3.
a-2c = 0 => a = 2c
b-2a = 0 => b = 2a
-2a+ac = 0
-2b+a2 = 0

--
-2a+ac = 0
-2(2c)+(2c)c = 0
2c2 - 4c = 0
2c = 4
c = 2

--
a = 2c
a = 4

--
b = 2a
b = 8

sehinggs

M = | 4   8 |
       | 2   4 |