Explicación paso a paso:
Pare resolver esta tabla tenemos que recordar la ley de signos :
1) a = 5 , b = -7 , c=9
a+b-c → 5 + (-7) - 9
5 -7 -9
-11
a-b+c → 5 - (-7) + 9
5 + 7 +9
21
a - b - c → 5 - (-7) - 9
5 + 7 - 9
3
2) a= -6 , b = 2 , c= -10
a+b-c → -6 + 2 - (-10)
-6 +2 + 10
-6
a-b+c → -6 -2+ (-10)
-8 - 10
-18
a - b - c → -6 -2 - (-10)
-8 +10
2
3) a= -3 , b= -6 , c=-12
a+b-c → -3 -6 -(-12)
-8 +12
4
a-b+c → -3 -(-6) -12
-3 +6-12
-9
a - b - c → -3 -(-6) -(-12)
-3 +6 +12
15
4) a= 2 , b=6 , c=8
a+b-c → 2+6-8
0
a-b+c → 2 -6 +8
-4+8
a - b - c → 2-6-8
-4-8
-12
5) a=-7 , b=-4 , c=5
a+b-c → -7 +(-4) - 5
-7 -4 -5
-16
a-b+c → -7- (-4) + 5
-7+4+5
a - b - c → -7 -(-4) -5
-7 +4 -5
-8
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Explicación paso a paso:
Pare resolver esta tabla tenemos que recordar la ley de signos :
1) a = 5 , b = -7 , c=9
a+b-c → 5 + (-7) - 9
5 -7 -9
-11
a-b+c → 5 - (-7) + 9
5 + 7 +9
21
a - b - c → 5 - (-7) - 9
5 + 7 - 9
3
2) a= -6 , b = 2 , c= -10
a+b-c → -6 + 2 - (-10)
-6 +2 + 10
-6
a-b+c → -6 -2+ (-10)
-8 - 10
-18
a - b - c → -6 -2 - (-10)
-8 +10
2
3) a= -3 , b= -6 , c=-12
a+b-c → -3 -6 -(-12)
-8 +12
4
a-b+c → -3 -(-6) -12
-3 +6-12
-9
a - b - c → -3 -(-6) -(-12)
-3 +6 +12
15
4) a= 2 , b=6 , c=8
a+b-c → 2+6-8
0
a-b+c → 2 -6 +8
-4+8
4
a - b - c → 2-6-8
-4-8
-12
5) a=-7 , b=-4 , c=5
a+b-c → -7 +(-4) - 5
-7 -4 -5
-16
a-b+c → -7- (-4) + 5
-7+4+5
2
a - b - c → -7 -(-4) -5
-7 +4 -5
-8