Mathematics
10 Online
OpenStudy (anonymous):
The product of a number and the number increased by 9 is 36. What is the larger of the two solutions? Write the number only.
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OpenStudy (anonymous):
i dont understand
OpenStudy (shamim):
let the number is x
OpenStudy (gir_lover_♥):
^
OpenStudy (anonymous):
wait so the answer is x?????
OpenStudy (shamim):
if the number increased by 9
then it will b x+9
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OpenStudy (anonymous):
x+9? thats the answer??
OpenStudy (anonymous):
math confuses me
OpenStudy (shamim):
i think
x(x+9)=36
OpenStudy (anonymous):
ill try it
OpenStudy (shamim):
ok
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OpenStudy (anonymous):
not correct.
OpenStudy (shamim):
can u tell me the correct 1
OpenStudy (anonymous):
idk
OpenStudy (anonymous):
i need help jaka
OpenStudy (anonymous):
yeah
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OpenStudy (anonymous):
i can see that
OpenStudy (anonymous):
i hate math
OpenStudy (anonymous):
same
OpenStudy (thomas5267):
Okay. There are two numbers, \(A\) and \(B\). \(B=A+9\) and \(AB=36\).
OpenStudy (anonymous):
Thank you
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OpenStudy (thomas5267):
There exist two \(A\) that satisfies the equation. Find the larger of the two.
OpenStudy (thomas5267):
The question is poorly written though.
OpenStudy (anonymous):
@countryrockbabe
OpenStudy (thomas5267):
Basically substitute \(B=A+9\) into \(AB=36\) and solve the quadratic equation in A.
OpenStudy (anonymous):
Yawn
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OpenStudy (thomas5267):
I am not suppose to give the answer according to the code of conduct.
OpenStudy (anonymous):
Give Me The Answer
OpenStudy (anonymous):
I love you foseva
OpenStudy (mathstudent55):
@shamim wrote the correct equation above.
Here it is again: x(x+9)=36
Solve it for x.
You will get two answers. Pick the larger one.
OpenStudy (shamim):
u know 36=3*12
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OpenStudy (shamim):
x^2+9x-36=0
x^2+12x-3x-36=0
right?
OpenStudy (mathstudent55):
Correct so far.
Now factor by grouping.
OpenStudy (anonymous):
Yawn