15x^2-12+8x = 0
Rewrite that again into descending x-powers
15x^2+8x-12 = 0
We can factorise this to
(3x-2)(5x+6) = 0
So for the equation to equal zero, either the first bracket must be zero or the second.
if 3x-2 = 0 if 5x+6 = 0
3x = 2 5x = -6
x = 2/3 x=-6/5
So x = 2/3, -6/5
x = 4 You have to add the 8x and 7x to get 15x and then divide 60 by 15 to get x by itself.
8x2 + 15x + 7 = 0 factors to(8x + 7) (x + 1) = 0Therefore the 2 linear equations are:1. 8x + 7 = 0Thus 8x = -7x = -0.875and2. x + 1 = 0Thus x = -1
8x plus 4y equals 5 is 8x + 4y = 5.
There are only one solution.8x - 15x = 0Combine the 'like' terms on the left side of the equation:-7x = 0Divide each side by -7 :x = 0This are the only solution to the equation.
(1, 1)
x = 4 You have to add the 8x and 7x to get 15x and then divide 60 by 15 to get x by itself.
8x2 + 15x + 7 = 0 factors to(8x + 7) (x + 1) = 0Therefore the 2 linear equations are:1. 8x + 7 = 0Thus 8x = -7x = -0.875and2. x + 1 = 0Thus x = -1
Y-8x plus 9y equals 10y-8x.
Since the highest power of 'x' in the equation is '1', there's one solution.
8x plus 4y equals 5 is 8x + 4y = 5.
If that's 15x2, the answer is (3x + 4)(5x - 4)
There are only one solution.8x - 15x = 0Combine the 'like' terms on the left side of the equation:-7x = 0Divide each side by -7 :x = 0This are the only solution to the equation.
No.
- 8x + 8x = 0 so question is meaningless.
8x-7 plus 2x equals 6 plus 5x plus 2?
(1, 1)
-8x - 10 - 20 = -8x - 30