Integers
Evaluate : 13 + (-17)
-4
Simplify : 240/360
2/3
(-6)2 + (-4)3
-12
Given that x = 3, y = -4, evaluate 2y² - y(x - y).
60
factorise : x2 - 5x + 6
(x - 2) (x - 3)
Calculate : -9 x (-8) : (-2)
-36
Evaluate : 5/6 - 3/4 = .....
1/12
(a2b)3 : (a4b)
a2b2
What must be added to (3 - 4x + 5x²) to give (9x² + 11x - 13)?
4x² + 15x - 16
find the solution of : x2 + 7x - 120 = 0
x = -8 or x = 15
3 + 5((8+(-3))-4)-6
2
2/3-3/4-5/6
-11/12
(a2bc)3:(a2bc2)
a4b2c
A merchant buys n microchips at $2x and sells them at $(n - x) each. If the merchant suffers a loss after selling all the microchips, express his loss in terms of n and x.
n²-3nx
Find two consecutive positive even numbers such that the square of their sum is 100.
4 and 6