radical expressions and rational/irrational numbers
what is a radical?
a radical is the symbol that express a root of a number.
GOAL solving equations.
to get the variable by itself
True or False/ rational* rational=
True
Adding polynomials
combining like terms
(8+7v3-7v)+(4v-1+4v3)
11v3+7-3
what is an index
the index is the root that is being taken if there is no visible number, we are taking square root.
to solve an equations
use inverse operations
simplify √ 112
4√ 7
subtracting polynomials
distribute the negative CLT
5n(6n2-6n-8)
30n3-30n2-40n
what is the radicand
the radicand is the terms located under the radical symbol.
what is P. E. M/D. A/S
parentheses, exponets, multiply/divide, add/ subtraction
(x-6)(x+7)
1x-42
(2x2-4x+3)+(x2+5x-1)
3x2+1x+2
√16
4
√45
3√ 5
8x=-24
x=-3
-2>x+6
x=-10 or x=-13
(6+x2)+(2x-8)
x2+2x-2
3√54x6y4
3x2
√108
6√ 3
y-8=2
y=10
5(3-y)=7x
x=5
(5x-3x2+1)-(-6+x2-2x)
-4x2+7x+7
(x+5)(5x+8)
5x2+33x+40