2x2 - 9x = 18
2x2 - 9x -18 = 0
(2x - 18)(x + 9)
x= -9 and 9
Chat with our AI personalities
U can subtract 18 from each side of the equation.
6x-4 = 18 6x = 18+4 6x = 22 x = 22/6 = 3 and 2/3
D - 9 = 9 d = 9 + 9 d = 18
b + 7 = 18 subtract 7 from each side b + 7 - 7 = 18 - 7 b = 11 ----------------check in original equation 11 + 7 = 18 18 = 18 --------------checks
To find the x-intercept for 5x - 4y = 18, plug in a 0 for the y value and solve for x. 5x - 4(0) = 18 5x = 18 x = 18/5 or 3.6 The line will hit the x-axis at (3.6,0)