Unit 1 quiz Flashcards
What order is bedmas
Brackets, exponents, Division multiplication, adding subtracting
(-5)^2=?
25
-5^2
-25
x/y…… X=? Y+?
Numinators, denominators
(6/7) / (7/8) =?
(6/7) / (8/7) ALSO 48/49
(6/5) + (7/15) =?
5/3
(4a^2-8a+12)+(-2a^2+6a-5)-(3a^1-3a-2) =?
-a^2+a+9
(4x+3)^2 =?
16x^2+24+9
10x^2y+5xy
5xy(2x+1)
a^2-b^2 =?
(a+b) (a-b)
x^4-81 =?
(x^2+9)(x-3)(x+3)
Order when factoring?
Look for GCF, count terms
Count squares
2=?
3=?
4=?
Difference of squares
Perfect square, simple, complex
Count terms
Is this simple, complex or perfect square?
4x^2+10x+9
Perfect square
Is this simple, complex or perfect square?
x^2+7x+12
simple
Is this simple, complex or perfect square?
2x^2-t-6
complex
4x^2+10x+9=?
(2x+3)^2
How to solve complex
M= 1st term x last term
A= middle term
N= what numbers add to a and multiply to M
How to solve simple
M= last term
A= middle term
N= what numbers add to a and multiply to M
M^2-9+6n-n^2
(m-n+3)(m+n-3)
d(1-r)-dr+dr^2
D(1-r)^2