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9x2 - 6xy + y2 - 81 = (3x - y)2 - 81 = (3x - y - 9)*(3x - y + 9)
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∙ 11y ago
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∙ 8y ago(3x - y - 9)(3x - y + 9)
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Factor 9x squared - 6xy plus y squared - 81?
Type your answer here... 81
Solve 27y plus 18x equals 21?
This can be interpreted as a line in 2d space. There are an infinite number of solutions. More than likely your real question is: "How can 27y + 18x = 21 be written in standard slope-intercept form?"Same as 9y + 6x = 7 (divide both sides by 3).Solve for y:9y = 7 - 6xy = (7 - 6x) / 9, ory = (-2/3)x + 7/9We now have an eaquation of a line: slope = -2/3, y-intercept = 7/9Paste -2/3x + 7/9 into the calculator at http://www.coolmath.com/graphit/and click "Eval" to visualize it.
How do you factor 2x squared plus 6xy?
2x2 + 6xy = 2x (x + 3y)
Factor 9x squared - 6xy plus y squared - 81?
Type your answer here... 81
What is 9x squared minus 6xy plus y squared minus 81 factored as?
9x2 - 6xy + y2 - 81 = (3x - y)2 - 92 = (3x - y - 9)(3x - y + 9)
Factor 3x squared plus 6xy plus 3y squared?
(3x + 3y)(x + y) = 3(x + y)2
What is 9x squared minus 6xy plus y squared minus 81?
The answer? There is no "answer" There cannot be an answer because they are all different. In order to make calculations, the variables have to be the same. x squared, xy, y squared are the variables, and none of them match. Therefore your "answer" must look like this: 9x squared - 6xy + y squared - 81. Hope I Helped :D
3x squared plus 6xy plus 3y squared?
3x2+6xy+3y2= 3(x2+2xy+y2)= 3(x+y)2
How doy you factor 6xy plus 3x?
3x(2y + 1)
How do you factor the polynomial 2y plus 6xy?
2y(3x + 1)
What is the greatest common monomial factor of 3x3 plus 6xy plus 9x2 plus 12x2y2?
3x
What is the factor of 9x2-6xy plus y2?
(3x - y)(3x - y)
How do you Factor a²-x²-9y² plus 6xy?
(a + x - 3y)(a - x + 3y)
What is 2xy plus 6xy?
2xy + 6xy = 8xy
