3 squared = 9 4 squared = 16 9 x 16 = 144 3 squared x 4 squared = 144
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It is (x+3)(x+4) when factored
-4
if x= 3 or -3
(x+4)(x+4), or (x+4)^2.
It is impossible but if it were x squared plus 2x minus 15 the equation would be (x+5) (x-3) with x being equal to either -5 or 3. If the original problem was x squared minus 2x minus 15 the equation would be (x-5)(x+3) and x would be equal to either 5 or -3