If and for nonzero constants , , and , which of the following is equivalent to ?A)B)C)D) Loading... Page navigation ← Daily PWN 059 Daily PWN 061 →

I did it the hard and long way strip off the exponents a+b=12 a-b = 3 a = 12-b a = 3+b b =4.5, a = 7.5 7.5^2 = 56.25 = a^2 4.5^2 =20.25 = b^2 a^2-b^2 = 36 put back the c c^36 Log in to Reply

## Comments (1)

I did it the hard and long way

strip off the exponents

a+b=12 a-b = 3 a = 12-b a = 3+b

b =4.5, a = 7.5

7.5^2 = 56.25 = a^2

4.5^2 =20.25 = b^2

a^2-b^2 = 36

put back the c

c^36