# Roots and coefficient

In the equation 2x

^{2}+ bx-9 = 0 is one root x1 = -3/2. Determine the second root and the coefficient b.### Correct answer:

Tips for related online calculators

Are you looking for help with calculating roots of a quadratic equation?

Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?

Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?

#### You need to know the following knowledge to solve this word math problem:

## Related math problems and questions:

- Coefficient 21623

In the equation 2x² + bx-9 = 0 there is one root x1 = -3 / 2. Determine the second root and the coefficient b - Equation

Equation -2x²+bx -82 =0 has one root x_{1}= -8. Determine the coefficient b and the second root x_{2}. - Quadratic equation - Viets

In the equation 3x²+bx+c=0, one root is x1 = -3/2. Determine the number c so that the number 4 is the root of the equation. Hint - use Viet's formulas. - Roots

Find the quadratic equation absolute coefficient q, that the equation has a real double root and the root x calculate: 5x ² +9x + q = 0 - Quadratic equation

Quadratic equation 7x²+bx+c=0 has roots x_{1}= 67 and x_{2}= -84. Calculate the coefficients b and c. - Parabola 3

Find the equation of a parabola with its focus at (0,2) and its vertex at the origin. f: y=x²+bx+c - Parabola

Find the equation of a parabola that contains the points at A[10; -5], B[18; -7], C[20; 0]. (use y = ax²+bx+c) - Simple coefficient

Find the value of k; if x = 3, y = 2 is a solution of the equation 2x + 3y = k. - Coefficient 81704

In the equation of the line p: ax-2y+1=0, determine the coefficient a so that the line p: a) it formed an angle of 120° with the positive direction of the x-axis, b) passed through point A[3,-2], c) was parallel to the x-axis, d) had a direction of k = 4. - Zero fraction equation

Find the value of y: 3/5y-9/4 (y +4) -1 = 1/2 (3y-2) -3 (3-y) - Please

Please determine the solvability conditions of the equation, solve the equation and perform the test: x divided by x squared minus 2x plus1 the whole minus x + 3 divided by x squared minus one is equal to 0: x/(x²-2x+1) - (x+3)/( x²-1) = 0 - Intersections 62534

The equation of the linear function is: y = -3x + 4 (a) determine the intersections with the axes sketch chart b) for which x applies f (x) = - 1 c) for which x applies f (x) = 0 d) for which y applies f (-1/2) = y - Statistical XY file

Year; money spent on advertising; profit (three values each row) 2008 2 12 2009 5 20 2010 7 25 2011 11 26 2012 15 40 1. draw a scatter diagram depicting the data. 2. calculate the Pearson's correlation coefficient. 3. determine the linear regression equat - Expression 68414

The expression 3x - [2 - (2x - 1) + x] is given. Determine for which numbers x the expression is equal to 0. - Determine 82394

Determine the equation of the circle that passes through the point M(-1,2) and N( 3,0) and whose center lies on the line p: x=-3+t, y=-1+t, - Variables: 3140

Determine the value of the expression 3a + 2b - a² - 4b² for the values of the variables: a) a = - 1, b = 3 b) a = 2, b = -1 c) a = -2, b = -3 d) a = 4, b = 2 e) a = -5, b = 0 - Quadratic function

It is given a quadratic function y = -4x²+5x+c with an unknown coefficient c. Determine the smallest integer c for which the graph of f intersects the x-axis at two different points.