Arithmetic, Number Facts and Sequences
Write 46000 in scientific notation
4.6 x 104
Solve for x and y
2x + y = -3
x - y = -3
x= -2, y= 1
Factorise x2 + 7x + 10
(x+5)(x+2)
Solve for x and y
3x + 2y = 19
x + 8y = 21
x= 5, y=2
Factorise x2 - 9
(x+3)(x-3)
Solve for x and y
x - y = -1
2x - y = 0
x=1, y=2
Give the Quadratic Formula
Refer to teacher