x4 - x + x2
x4 - x2 + x2
x4 + x2 + 1
x4 + x2
Correct answer is C
(x2 + x + 1)( x2 - x + 1)
= x2(x2 + x + 1) - x(x2 + x + 1) + (x3 + x + 1)
= x4 - x3 + x2 + x3 - x2 - x + 1
= x4 + x2 + 1
In the diagram, O is the center of the circle and the reflex angle ROS is 264o. Find ∠RTS...
A trader makes a loss of 15% when selling an article. Find the ratio, selling price : cost price ...
X is a point due east of point Y on a coast: Z is another point on the coast but 6√3km due sou...
The midpoint of P(x, y) and Q(8, 6) is (5, 8). Find x and y....
Evaluate; \(\frac{\log_3 9 - \log_2 8}{\log_3 9}\) ...
If angle \(\theta\) is 135°, evaluate cos\(\theta\) ...
If y = x Sin x, find \(\frac{dy}{dx}\) when x = \(\frac{\pi}{2}\)...