Solution:
From the given option (a)
Put x = - 3 in the given equation
x³+ 5x²-2x-24
(-3)³+ 5(-3) ² - 2×(-3)-24=0
-27+45+6-24=0
-51+51=0
0=0 satisfied
Again, x = -4
x³+ 5x²-2x-24
(-4) ³+5(-4)² 2×-4)-24=0
-64+80+8-24=0
-88+88=0
satisfied.
Therefore, the correct option is (a)
English
100 Questions
100 Marks
90 Mins English English100 Questions100 Marks90 Mins English English100 Questions100 Marks90 Mins EnglishIf one of the zeroes of a cubic polynomial x³ + ax² + bx + c is 1, then the product of the other two zeroes is:
If x + 1 is a factor of 2x³ + ax² + 2bx + 1, and 2a – 3b = 4, then the value of a + 2b is:
The solution of the pair of equations and x + y = 2ab is:
If the roots of the equation x³ − 12x² + 39x − 28 = 0 are in A.P., then their common difference is:
Both the roots of the equation (x − a)(x − b) + (x − b)(x − c) + (x − c)(x − a) = 0 are always:
The value of ‘a’ for which one root of the quadratic equation (a² − 5a + 3)x² + (3a − 1)x + 2 = 0 is twice the other, is:
Simplify:
Find roots of 5m² + 18m + 16 = 0
Find roots of 4m² + 6m + 2 = 0
If sum and product of the roots of a quadratic equation are and –28, respectively, then find the quadratic equation.
Suggested Test Series
Suggested Test Series
