Denise says that it's more appropriate to use the method of factoring than extracting square roots in solving the quadratic equations 9x²-25=0. Do you agree with Denise? Explain your answer.
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9x²-25=0
9x² +0x -25=0
9x²+15x-15x -25=0
3x(3x+5)-5(3x+5)=0
3x-5=0 or 3x+5=0
x= 5/3 or x= -5/3
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