+447 Factor x^2 - 8x + 15 + x^2 - 4x + 3
Find all values of x such that x^2 - 8x + 15 + x^2 - 4x + 3 = 0. If you find more than one value, then list your solutions, separated by commas.
+36943 First, simplify/reduce it to :
2x ^2 -12x + 18 =0 factor out '2'
2 ( x^2 -6x + 9) = 0 now it ieasier to factor
2 ( x -3)(x-3) = 0 shows x = 3
