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in solving 4x^2-9=0  how you factor it by solving the quadratic equation by factoring ?



Sagot :

4 and 9 are perfect squares. the square root of 4 is 2 while the square root of 9 is 3.
so the answer is.
(2x-3)(2x-3)=0
for checking use the F-O-I-L method or distributive property.