(3x+2y)*(5x-3y) =3x*5x + 3x*(-3y) + 2y*5x + 2y*(-3y) [This is sometimes called the FOIL method - You multiply the First members of each bracket, then the Outers, Inners, Lasts] = 15x2 - 9xy + 10xy - 6y2 = 15x2 + xy - 6y2
3y - 3 = 2y + 5 3y - 2y = 5 + 3 y = 8
Solving for y: 5y = 9 + 2y 5y - 2y = 9 3y = 9 y = 9/3 = 3
Subtract first from second gives -4x = 16 so x = -4 and y = -7
The equation "x plus 2y equals 5" is: x + 2y = 5 2y = 5 - x y = 5/2 - 1/2x y = -1/2x + 5/2
4y = 2y + 40 4y - 2y = 2y -2y +40 2y = 40 y = 20 check 4(20) = 2(20) +40 80 = 80
This means that 2y - 3 = 2y + 4 which is not possible.
No 2y-3 is not equals y plus 2AND how old are u?
2xy - 4x plus 8y - 16 equals x plus 4 in parentheses multiplied by 2y minus 4 in parentheses. So, the factors are ( x + 4) and ( 2y - 4) .
(3, 2)
2y+26 = 28 2y = 28-26 2y = 2 y = 1
-2y=x+8 is the answer
2y(x+2)=
Exactly (2y + 4) .
x=2y-1
x = 11 - 2y and 14 - 2y. This means that 11 = 14. Is there a typo in the question?
3y - 3 = 2y + 5 3y - 2y = 5 + 3 y = 8
-7x - 2y = -3