x = 1/6
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This question can only be answered with additional information, such as the value of x.Given x = 3, 2x * 4 = 2(3) * 4 = 6 * 4 = 24Given x = 5, 2x * 4 = 2(5) * 4 = 10 * 4 = 40------------------------------------------------------------------------------------------------------------------Contrary to the answer above; 2x * 4 = 8x
8x - 22 = 2x + 28x - 2x - 22 = 2x - 2x + 26x - 22 = 26x - 22 + 22 = 2+ 226x = 24x = 24/6 = 4
8x-4 = -7+5x 8x-5x = -7+4 3x = -3 x = -1
2x - 4 = -10 2x = -10 +4 2x = -6 x = -3
(2x + 4)(2x - 4) to check your answer, use the FOIL method (first, outside, inside, last) F.... 2x x 2x = 4x^2 0.... 2x x -4 = -8x I..... 2x x 4 = 8x L.... 4 x -4 = -16 so 4x^2 - 16 = (2x + 4)(2x - 4)