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In the equation y equals 2x2 - 5x - 18 which is a value of x when y equals 0?
Wiki User
∙ 14y ago
x = 9/2 or x = -2
Solved by using the quadratic equation formula.
Wiki User
∙ 14y ago
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What is a 2 step equation that equals 9?
it is 3x3 not that hard
Find the value of 2x² when x equals 3?
18
What should be added to both sides of this equation to solve for the variable 18 plus y equals 32?
You add -18... 18 + y = 32 18 + y + (-18) = 32 + (-18) y = 14
What are the solutions to the simultaneous equations of 2x -3y equals 4 and 5x plus 2y equals 1?
Equations: 2x-3y = 4 and 5x+2y = 1 Multiply all terms in 1st equation by 5 and all terms in 2nd equation by 2:- So: 10x-15y = 20 and 10x+4y = 2 Subtract the 2nd equation from the 1st equation: -19y = 18 => y = -18/19 By substitution the solutions are: x = 11/19 and y = -18/19
How do you solve the equation 3 parentheses x plus 2 parentheses equals x minus 18?
3(x+2) = x -18 3x+6 = x -18 3x -x = -18 -6 2x = -24 x = -12
What is v-11 equals 7?
It is an equation and the value of v is 18
What is 3x plus 6 equals 18?
It is an equation and the value of x is 4
What is the graph of the equation 2x2-6x plus 2y plus 18 equals 0?
2x2-6x+2y+18 = 0. Subtract the 2y from both sides. 2x2-6x+18 = -2y. Divide all by -2 to get y by itself. -x2+3x-9 = y. This graph is going to be a parabola that opens downward, like a frown.
How do you solve 2xsquared-9x equals 18?
2x2 - 9x = 18 2x2 - 9x -18 = 0 (2x - 18)(x + 9) x= -9 and 9
What is y over 3 plus 7 equals 13?
It is an equation and the value of y is 18
What is 7b-12 plus 2b plus 3 equals 18?
It is an equation and the value of b is 3
What is the value of y if 3y is a solution to the equation 5y-3y equals 18?
5y - 3y = 18 2y = 18 y = 18/2 y = 9
What is the value of x in the equation 2 plus 2x equals 18?
2 + 2x = 18 2x = 18 - 2 2x = 16 x = 8
What is 7x plus 3 equals -5 plus 2x plus 18?
It is an equation and the value of x is 2
What is 3n equals 18?
How do you find the answer to this equation: 3n equals 18
What two step equation equals 18?
(42) + 2 = 18
How do you solve x-7y equals 18 2x-7y equals 22?
x - 7y = 18 ... (A) 2x - 7y = 22 ... (B) Equation (B) - equation (A) gives x = 4 Substituting this value of x in equation (A) gives 4 - 7y = 18 or 7y = -14 which gives y = -2 Solution: (x, y) = (4, -2)
