Assuming the equation is exactly as you described in words, it would be expressed algebraically as 9X+(6-4X-2X)+(1-15)
9X+(6-4X-2X)+(1-15) First, Combine all like terms inside the parenthesis
9X+(6-6X)+(-14) Next, clear the parenthesis. This is done by distributing the "1" coefficient implied by the parenthesis over the entire parenthesized term.
9X+1(6-6X)+1(-14)
9X+6-6X-14 Combine like terms again to get your answer!
=3X-8
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To simplify x3-9x, you factor out the x, leaving you with x(x2-9). You can then take the square root of both numbers and end up with x(x+3)(x-3).
(9x - 1)(9x - 1)
2 - 8x - x + 4 Combine numeric terms: -8x - x + 6 Combine x terms: -9x + 6 or 6 - 9x If you want, pull out common terms: 3(-3x + 2) or -3(3x - 2)
9x2 + 9x - 10 =(3x - 2)(3x + 5)
3(x2 + 3x + 1)