cansomeone show me the steps on how to factor :
x^2 - 6x + 9
please and thank you!
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hartnn (hartnn):
can you find 2 numbers whose sum is -6 and product = 9 ?
OpenStudy (solomonzelman):
think!
OpenStudy (anonymous):
3
hartnn (hartnn):
+3 ? sure ?
and we will need 2 numbers...
OpenStudy (anonymous):
the answer is (x-3)^2 but i need to see how to get it :((
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hartnn (hartnn):
its easy to find 2 numbers whose sum is -6 and product = 9
try once more ?
OpenStudy (solomonzelman):
Couple tips
both constants are negative b/c the product is positive nut sum is negative.
both constants are factors of 9
OpenStudy (solomonzelman):
well you know it is going to be (x ) (x )
right
hartnn (hartnn):
huge hint : both constants are same!
OpenStudy (solomonzelman):
After that u have to know!!!!!!!!!!!!!!
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OpenStudy (anonymous):
im lost X_X i forgot about this, :'(
OpenStudy (solomonzelman):
OK! lets do this together!
lets find the 1st numbers in each parenthesis.
The first step to write it out would be to write
(x ) (x ) b/c only by doing x times x you can get x^2, OK? Following?
OpenStudy (solomonzelman):
So you do understand!
OpenStudy (solomonzelman):
Can you do another one for me, just to make it clear?