(9x-4)^2-(x-12)^2=0
Expand the squares:
81x^2 - 72x + 16 - (x^2 - 24x + 144) = 0
Remove brackets:
81x^2 - 72x + 16 - x^2 + 24x - 144 = 0
Combine like terms:
80x^2 - 48x - 128 = 0
Divide by 16 to simplify:
5x^2 - 3x - 8 = 0
Factor the quadratic equation:
(5x + 4)(x - 2) = 0
Set each factor to zero and solve for x:
5x + 4 = 05x = -4x = -4/5
x - 2 = 0x = 2
Therefore, the solutions to the equation are x = -4/5 and x = 2.
(9x-4)^2-(x-12)^2=0
Expand the squares:
81x^2 - 72x + 16 - (x^2 - 24x + 144) = 0
Remove brackets:
81x^2 - 72x + 16 - x^2 + 24x - 144 = 0
Combine like terms:
80x^2 - 48x - 128 = 0
Divide by 16 to simplify:
5x^2 - 3x - 8 = 0
Factor the quadratic equation:
(5x + 4)(x - 2) = 0
Set each factor to zero and solve for x:
5x + 4 = 0
5x = -4
x = -4/5
x - 2 = 0
x = 2
Therefore, the solutions to the equation are x = -4/5 and x = 2.