Bunuel wrote:
If x + y = 7 and x – y = 3, then x^2 - y^2 =
A.-4
B.4
C.10
D.21
E.40
pick numbers
5 +2 =7
5-2= 3
25-4= 21
If x + y = 7 and x – y = 3, then x^2 - y^2 =
A.-4
B.4
C.10
D.21
E.40
pick numbers
5 +2 =7
5-2= 3
25-4= 21
↧
Problem Solving (PS) | Re: If x + y = 7 and x – y = 3, then x^2 - y^2 =
If x + y = 7 and x – y = 3, then x^2 - y^2 =
A.-4
B.4
C.10
D.21
E.40
pick numbers
5 +2 =7
5-2= 3
25-4= 21
↧
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