All the terms have 4x4 as a factor
Then, 4x7 + 32x5 + 24x4 = 4x4(x3 + 8x + 6)
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X = -31/8 = -3.875
4 because:- a = missing factor 4 x 7 x a = 28 x 4 28 x a = 112 a = 112/28 a = 4
yes 4x7=28
1x28.....2x14....4x7
4x+3=9x-4+4 +44x+7=9x-4x -4x7=5x-------57/5=1.41.4=x