2x2 + 3x + 14 = 0
2x2 + 5x + 7 = 0
2x2 + 5x - 7 = 0
2x2 + 3x - 14 = 0
Correct answer is D
x2 (sum of roots)x + (product of roots) = 0
Sum of roots \(2+-3\frac{1}{2} = -1\frac{1}{2}=-\frac{1}{2}\)
Product of roots \(=2 \times -3\frac{1}{2}=-7\\
x^2-\left(\frac{-3}{2}\right)x+(-7)=0\Rightarrow 2x^2 + 3x - 14 = 0\)
Which of the following is not a sufficient condition for two triangles to be congruent? ...
The histogram shows the age distribution of members of a club. What is their modal age? ...
A man bought a second-hand photocopying machine for N34,000. He serviced it at a cost of N...
In how many ways can the word MATHEMATICIAN be arranged? ...
In the diagram, EFGH is a cyclic quadrilateral in which EH || FG, EG, and FH are chords. If < FHG...
If a2 + b2 = 16 and 2ab = 7.Find all the possible values of (a - b)...
In the diagram, PR is a tangent to the circle at Q, QT//RS, ...
IF the exterior angles of a quadilateral are yo, (2y + 5)o , (y + 15)o and (3y - 10)o, find yo...