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Question if-and

2.4 Equivalent Expressions - Simplifying rational expressions
0:00

If x squared equals, a, plus b and y squared equals, a, plus c, which of the following is equal to open parenthesis, x squared, minus y squared, close parenthesis, squared ?

A.

a, squared, minus 2 a, c, plus c squared

B.

b squared, minus 2 b c, plus c squared

C.

4, a, squared, minus 4 a, b c, plus c squared

D.

4 a, squared, minus 2 a, b c, plus b squared c squared