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There is a formula for the "difference of squares." In this case, the answer is (5x + 3)(5x - 3)
x= -11
11x + 2
7X-1=9+5X. add 1 to both sides 7X=10+5X. Subtract 5X and get 2X=10 divide by 2 and x=5
5x - 2x = 3x