SOLUTION: solve by factoring and using the principle of zero procucts. 4x^2-9=0

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Question 381674: solve by factoring and using the principle of zero procucts.
4x^2-9=0
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

factoring

4x^2-9=0

(2x-3)(2x+3) = 0 Note:SUM of the inner product(-6x) and the outer product(6x) = 0

Applying principle of zero products to solve for x

(2x-3)=0

  x = 3/2

(2x+3) = 0 

  x = -3/2