6
-1
3x - 6y = 9, 5x + 4y = -27 6x - 12y = 18, 15x + 12y = -81 21x = -63 x = -3 (3 x -3) = 9 + 6y (-9 - 9)/6 = y y = -3 Check: (5 x -3) + (4 x -3) = -15 -12 = -27 QED
It is a binomial expression in X and Y.
36y^2 - 1 = (6y - 1)(6y + 1)
3(x + 2y)
The GCF is 6y
To simplify the expression (2w + 2x - 12y + 7w + 9x + 6y), combine like terms. First, combine the (w) terms: (2w + 7w = 9w). Next, combine the (x) terms: (2x + 9x = 11x). Finally, combine the (y) terms: (-12y + 6y = -6y). The simplified expression is (9w + 11x - 6y).
12y
6xy +12y = 6y (x+2)
Two ways to see this: 6y=8-9+6y 6y=6y-1 No answer here 6y= 8-(9+6y) 6y+(9+6y)=8 12y+9=8 12y=-1 y= -(1/12) or -0.08333...
Pull out the common factor of 2 ... 2(y^2+6y-16) Then just factor (y^2+6y-16) ... (y-2)(y+8)
6y + 4.. i think
To factor the expression (6y + 12), first, identify the greatest common factor (GCF) of the terms, which is 6. Factor out the GCF: [ 6y + 12 = 6(y + 2). ] Thus, the factored form of the expression is (6(y + 2)).
12y3 - 30y2 + 12yFactor out a y:y(12y2 - 30y + 12)Factor out a 6:6y(2y2 -5y + 2)Factor 2y2 - 5y + 26y(2y - 1)(y - 2)
(y + 8)(y - 2)
parallel
(y + 8)(y - 2)