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Answer:
1.which of the following quadratic may be solved more appropriate by factoring?
a. 5x²=125
b. 2x²-2x-12=0
c. x²=121
d. x²+20x+100=0
2.Do you agree that not all quadratic equations can be solved by factoring?justify your answer by giving one example.
3.show that the quadratic equation (x-2)²=16 can be solved both by factoring and extracting square roots.