x2 + 4x - 20 = 0
x2 + x + 20 = 0
x2 - x + 20 = 0
x2 + x - 20 = 0
x2 - x - 20 = 0
Correct answer is D
(x - 4)(x + 5) = 0 x2 + 5x - 4x - 20 = 0 x2 + x - 20 = 0
A cone is 14cm deep and the base radius is 41/2cm. Calculate the volume of water that is exactly hal...
The area of an ellipse is 132cm2.The length of its major axis is 14cm.Find the length of it minor ax...
A man made a profit of 5% when he sold an article for N60,000.00. How much would he have sell the ar...
Given matrix M = \(\begin{vmatrix} -2 & 0 & 4 \\ 0 & -1 & 6 \\ 5 & 6 & 3 \en...
In how many ways can a delegation of 3 be chosen from among 5 men and 3 women, if at least one man a...
E = (integers ≤ 20), P = (multiples of 3), Q = (multiples of 4), what are the elements of P&#...
While doing his physics practical, Idowu recorded a reading as 1.12cm instead of 1.21cm. Calculate h...
What is the equation of the line PQ?...
If (x - 2) and (x + 1) are factors of the expression x3 + px2 + qx + 1, what is the sum of p and q...
The model height and range of heights 1.35, 1.25, 1.35, 1.40, 1.35, 1.50, 1.35, 1.50, and 1.20 are m...
Microsoft Office Questions and Answers
Situational Judgement Questions and Answers
Abstract Reasoning Questions and Answers
Data Interpretation Questions and Answers
Spatial Reasoning Questions and Answers
Typing Speed and Accuracy Test
Personality Test
Numerical Reasoning Questions and Answers
Logical Reasoning Questions and Answers
Nigeria General Knowledge Questions and Answers
Quantitative Reasoning Questions and Answers
Puzzles Questions and Answers
Verbal Reasoning Questions and Answers
See all →