Given that (2x - 1)(x + 5) = 2x2 - mx - 5, what is the va...
Given that (2x - 1)(x + 5) = 2x2 - mx - 5, what is the value of m
11
5
-9
-10
Correct answer is C
(2x - 1)(x + 5) = 2x2 - mx - 5
2x2 + 10x - x - 5
= 2x2 + 9x - 5 = 2x2 - mx - 5
comparing the co-efficient of x
-m = 9
m = -9
\(\begin{array}{c|c} Scores & 3 & 6 & 5 & 2 \\ \hline Frequency & 2 & 3 &...
Factorise (4a + 3) \(^2\) - (3a - 2)\(^2\)...
The following are scores obtained by some students in a test. Find the median score &nbs...
Simplify (3/4 + 1/3) x 4(1/3) ÷ 3(1/4) ...
Given that y = 1 - \(\frac{2x}{4x - 3}\), find the value of x for which y is undefined ...
Make x the subject of the equation s = 2 + \(\frac{t}{5} \)(x + ⅗y)...
simplify \(16^{\frac{-1}{2}}\times 4^{\frac{-1}{2}} \times 27^{\frac{1}{3}}\) ...