PEMDAS & PROPERTIES
According to PEMDAS, what operation is done first in (4+2)2?
Inside the parentheses
Simplify: x4+x2
x6
Solve: x+7=12
x = 5
6x2+12x
6x(x+2)
Solve x2-9=0
x=±3
The property shown by x⋅1=x.
Identity
Simplify y0
1
Solve 4x = 20
x = 5
x2-25
(x-5)(x+5)
Solve: x2+6x=0.
X=0 X= -6
Which property allows a+b=b+a?
Commutative
Simplify √18
3√2
Solve |x - 3| = 2
X = 5
X= -1
x2+5x+6
(x+2)(x+3)
Solve x2+4x+4=0
x=-2
Which property is used to rewrite 5(x+2) as 5x+10?
Distributive
Simplify 2√3 +4√3
6√3
Solve and write as an interval: 2<x≤62
(2 , 6]
9y2-16
(3y-4)(3y+4)
How many real solutions does x2+1=0 have?
ZERO
True or False: Parentheses are evaluated before exponents.
True
Rewrite 6a-2 without negative exponents
6 /a2
Solve: ∣x+4∣>1
x<−5 or x>−3
a3+8
(a + 2) (a2-2a+4)
What method works best for solving x2−16=0
Extracting the Square Root