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4 * 3=12 * 2-X-3 12=24-(X+3) 0=12-(X+3) 0=X-9 X=-9
2xx-5x-12 2*-12=-24 -24=-8*3 -8+3=-5 2xx-8x+3x-12 2x(x-4)+3(x-4) (2x+3)(x-4)
If x=3 and y=2, 4xy = 4(3)(2) = 12(2) = 24
x + 5x + 6x = 12x. There are 3 terms. If the arithmetic mean is 8 then 12x = 3 x 8 = 24 : So, x = 24 ÷ 12 = 2.
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