7-10 Solutions of Equations

1
7-10 Solutions of Equations
2
Determine Solutions

• Ex 1 Is a solution to
• Substitute
• Simplify

So No
3
Remember

• If solutions to an equation are 2 and -3 then it
  is a quadratic equation such that
• (x-2)(x3)0 or x2 x - 6 0

4
Find an equation with given solutions
Example 2
5
Solving Equations
Get xs on one side Factor out Divide

• Ex 3

6

• Ex 4
• Show is factorization of x2
  4

7
UnderstandComplex numbers have 2 square roots
which are additive inverses (zero only has one)

• Ex 5 Show is the square root of
• Then find the other square root.
• The other root is

8
Assignment

• 7-10/333/1-29, 35-39 odd