3x2 + 5x + 2 is a quadratic expression that can be factored as follows:
3x2 + 5x + 2
= 3x2 + 3x + 2x + 2
= 3x(x + 1) + 2(x + 1)
= (3x + 2)(x + 1)
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3x3+15x2+18x = 3x(x2+5x+6) = 3x(x+2)(x+3)
8x
6-3x = 5x-10x+10 6-3x = -5x+10 -3x+5x = 10-6 2x = 4 x = 2
It is a mathematical equation, usually written like this: 5x - 7 + 2x = 3x - 2 + 4x
3x + 2 + 2x = 7; 3x + 2x = 5x, so 5x + 2 = 7; 7-2=5, so 5x=5. 5x divided by 5 and 5 divided by 5 equals 1, so x equals 1.