Mathematics
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OpenStudy (anonymous):
(x-5)(x+10)=0 help solve in quadratic equation
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OpenStudy (mertsj):
If the product of factors is 0 then one of the factors must be 0.
OpenStudy (mertsj):
What factors are you multiplying?
OpenStudy (anonymous):
this is a quadratic equstion
OpenStudy (mertsj):
Yes it is.
OpenStudy (anonymous):
I am not sure how to work
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OpenStudy (mertsj):
Can you solve this problem: x(2)(3)95)(-8) = 0
What is x?
OpenStudy (anonymous):
2 or 3?
OpenStudy (mertsj):
Let's say x = 2 as you suggest. So you believe that:
2(2)(3)(5)(-8)=0 ????
OpenStudy (anonymous):
no
OpenStudy (mertsj):
x(2)(3)(5)(-8)=0
What is x?
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OpenStudy (anonymous):
1?
OpenStudy (mertsj):
So you believe that 1(2)(3)(5)(-8)=0 ????
OpenStudy (anonymous):
I give up I do not know
OpenStudy (mertsj):
Try this one: 5(x)=0
What is x ?
OpenStudy (anonymous):
i am here just thinking
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OpenStudy (anonymous):
5
OpenStudy (mertsj):
So 5(5)=0 ????
OpenStudy (mertsj):
I will say it again: If you multiply factors and get 0 then one of the factors must be 0
OpenStudy (mertsj):
Solve this equation: 5x=0 by dividing both sides of the equation by 5
OpenStudy (anonymous):
I am lost
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OpenStudy (mertsj):
5x=0 means that x has to be 0 because if the answer to a multiplication problem is 0 one of the numbers you multiply must be 0
OpenStudy (anonymous):
k so how do i solve my problem
OpenStudy (mertsj):
x-5=0 or x+10=0
Solve those equations.
OpenStudy (anonymous):
ok i think got what you are saying