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| PAGE: 272 | SET: Exercises | PROBLEM: 1 |
The roots are 
and 
.
Standard form of quadratic equation is 
.
(Substitute 
and 
)
(Multiply)
FOIL method:
The product of two binomials is the sum of the products of the first terms, the outer terms, the inner terms and the last terms.
(Foil method)
(Multiply)
(Combine like terms)
The standard form of the equation is 
.
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