rhiunoa rhiunoa

08-07-2016
Mathematics

Answered

If f(x) = x2 − 1, and f(2a) = 35, then what is the the value of a?

Verified Answer :

jhonyy9 jhonyy9

08-07-2016

f(x) = x^2 -1

f(2a) = 4a^2 -1 so

4a^2 -1 = 35

4a^2 = 36

a^2 = 9

a_1,2 = +/- 3

hope this will help you

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