Expanding brackets
Which two numbers add to 7 and multiply to 10
5 and 2
5 + 2 = 7
5 x 2 = 10
factorise. x2+6x+9
(x+3)2
5x(x - 1)
5x2 - 5x
(x + 6) ( + 5)
x2 + 11x + 30
what is an example of a Non-Monic
(3x+1)(x+2)
Which two numbers add to -8 and multiply to 12
-6 and -2
-6 + -2 = -8
-6 x -2 = 12
factorise. 25x+30
5(5x+6)
-n(n - 9)
-n2 + 9n
(r + 5) (r - 8)
r2 - 3r -40
what is the order of operations?
BIDMAS Brackets, Indicies, Division, Muliplication Addition, Subraction
Which two numbers add to 15 and multiply to 50
5 and 10
5 + 10 = 15
5 x 10 = 50
factorise. x2-16
(x+4)(x-4)
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Congratulations!
(3n + 2)(n - 1)
3n2 - n - 2
give an example of like terms?
3x+8x
Which two numbers add to -5 and multiply to -6
-6 and 1
-6 + 1 = 5
-6 x 1 = 5
x2+9x+20
(x+4)(x+5)
3xy(2 - y) - (4x + 8)
6xy - 3xy2 - 4x - 8
(2a + 5)(4a - 3)
8a2 + 14a - 15
What is the difference between factorising and expanding?
factorising is when you put expressions back into brackets, whereas expanding is where you change the brackets to expressions.
Which two numbers add to 9 and multiply to -52
13 and -4
13 + -4 = 9
13 x -4 = -52
x2+8x+16
(x+4)(x+4) or (x+4)2
s(2r - 3s) + 2r(3r - 2s)
3s2+ 6r2 - 2rs
(3r - 2)(8r - 7)
24r2 - 37r + 14
Who is Ms Walker's favourite singer?
T Swizzle