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QUADRATICS
EQUATIONS
A)
Solving QE by factorization
1) Write
the equation as 
2) Factorize
the left member
3) Use the
fact that " a product can be zero only if at least one
of the factor is zero", to get two linear equations.
4) Solve
each linear equations to get the answer.
Example
1: Solve
Sol.
Answer:
x = - 5 , x = 3
Example
2: Solve 
Sol.
Answer:
x = - 7/2 , 1/5
B)
Solving QE by formula
1) Write
the equation as
2) Use the
quadratic formula 
3) Replace
a,b and c by the given numbers
Example
3: Solve 
Sol.
Answer:
x =- 3 , x = 2/5
Example
4: Solve
Sol.
Answer:
x = - 4/15 , x = 3/10
Example
5: Solve 
Sol.
Answer:
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