SOLUTION: Let a and b be real numbers. For this problem, assume that a - b = 4 and a^2 - b^2 = 8.
(a) Find all possible values of ab
(b) Find all possible values of a+b
(c) Find all po
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Question 1207695: Let a and b be real numbers. For this problem, assume that a - b = 4 and a^2 - b^2 = 8.
(a) Find all possible values of ab
(b) Find all possible values of a+b
(c) Find all possible values of a and b
Found 2 solutions by MathLover1, greenestamps:
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
.......eq.1
....eq2, substitute
........solve for
..........eq.2a
go to
.......eq.1, substitute
go to
..........eq.2a, substitute
solution: ,
(a) Find all possible values of
(b) Find all possible values of
(c) Find all possible values of and
,
Answer by greenestamps(13198) (Show Source): You can put this solution on YOUR website!
[1]
[2]
Factor [2] and substitute [1]:
[3]
Add [1] and [3]:
[4]
Substitute [4] in [3]:
Solution: a=3; b=-1
ANSWERS:
(a) ab = (3)(-1) = -3
(b) a+b = (3)+(-1) = 2
(c) a=3; b=-1
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