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Chapter 9: Q. 1 (page 632)

Find the real solutions, if any, of the equationex2-9=1

Short Answer

Expert verified

Solution set is(-3,3)

Step by step solution

01

Step 1. The given information is 

ex2-9=1

02

Step 2. Using exponent identity e0=1 we get,

ex2-9=e0x2-9=0x2-32=0(x+3)(x-3)=0x+3=0,x-3=0x=-3,x=3

solution set is(-3,3)

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