A polynomial in x whose zeros are -2, -1 and 3 is
...A polynomial in x whose zeros are -2, -1 and 3 is
x3 - 7x + 6
x3 + 7x - 6
x3 + 7x + 6
x3 - 7x - 6
Correct answer is D
x = -2, x = -1 and x = 3
∴x+2 = 0, x+1 = 0 and x-3 = 0
Product of the factors
(x+2)(x+1)(x-3) = 0
(x2 + 3x + 2)(x-3)
x(x2 + 3x + 2) -3(x2 + 3x + 2) = 0
x3 + 3x2 + 2x - 3x2 - 9x - 6 = 0
x3 - 7x - 6 = 0
Simplify \(6\frac{1}{12} − 2 ¾ + 1 ½ \)...
Use the graph find the values of p and q if px + qy \(\geq\) 4...
Evaluate the inequality \(\frac{x}{2} + \frac{3}{4} \leq \frac{5x}{6} - \frac{7}{12}\)...
In the figure, find the area of XYZW ...
Use the graph to answer the Question below What are the roots of the equation x2 + 3x - 4 = 0?...