Simplifying Radicals
Simplify √49
7
What is the purpose of rationalizing the denominator?
To remove the square root in the denominator
When would you choose to solve by square root method?
When there is no "bx" term.
When would you choose to solve by quadratic formula?
Last resort
When should you solve by factoring?
If it's easily factorable or a simple graph.
Simplify √45
3√5
Simplify (√3)/(√5)
(√15)/(5)
Solve x^2=36
x=-6,6
Identify the a, b, and c values of: 0=7x^2+4x-5
a=7
b=4
c=-5
Solve (2 - x)(3x +4) = 0
x= -4/3, 2
Simplify √75
5√3
Simplify (2)/(√3)
(2√3)/(3)
Solve x^2-81=0
x=-9,9
Identify the a, b, and c values of: 4x^2=4x-1
a=4
b=-4
c=1
Solve 7x(3x + 2) = 0
x = -2/3, 0
Simplify 2√12x3
4x√3x
Simplify (√4)/(√25)
(2)/(5)
Solve 3x^2+7=55
x=-4,4
Solve 9x^2=-12x-4
x=-2/3
Solve a^2+11a=-18
x=-9,-2
Simplify -3√16x5
-12x2√x
Simplify (√6)/(√8)
(√3)/(2)
Solve (x+5)^2-3=46
x=-2,12
Solve 2x^2+6x=-1
x=(-3+sqrt7)/2,(-3-sqrt7)/2
Solve 6n^2−18n−18=6
x=-1,4