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Factor. A) x^2+2x+1 B)x^2+11x+30
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A. we have
we can write it as
B. We have
factorize 30, we write 30=5 .6
=x^2+(5+6)x+30 (spilit middle term)
This method is called spiliting middle term method.
Posted by pramodpandey on April 27, 2013 at 12:05 PM (Answer #1)
`A)` `x^2+2x+1` Factorizating set it equal zero:
`x^2+2x+1=0` `Delta= 4-4(1)=0` ha only a solution as a twice.
in order to factiorize it we need to set it equal zero:
`Delta= 121-4(30)=1` hastwo differetn solutions
`x=(-11+-sqrt(1))/2` `x_1=-5` `x_2=-6```
Posted by oldnick on April 28, 2013 at 12:29 AM (Answer #2)
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