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anonymous
 5 years ago
I have a question but I am stuck on the factoring
1/2*b*(h+7)=22
anonymous
 5 years ago
I have a question but I am stuck on the factoring 1/2*b*(h+7)=22

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Define 'factoring'  because that isn't something I'd look to factorise.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.01/2*b*(h+7)=22 1/2(b^2+h7)=22 2*1/2(b^2+h7)=2*22 b^2+h7=44 b^2+h744=4444 b^2+h744=0 (b )(h+ )= this is where I am lost

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0u cant solve for b and h in same equation

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Here I will give you the question. The base of a triangle is 7cm greater than the height. The area is 22 cm^2. I have to find the height and base of the triangle.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Define b = h+7 (or h = b7) , and go from there.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i.e. you should be solving: \[\frac{1}{2} \cdot h \cdot (h+7) = 22 \text{ or } \frac{1}{2} \cdot b \cdot (b7) \]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0The last one =22 too :@

radar
 5 years ago
Best ResponseYou've already chosen the best response.0Post the quadratic equation you get when you follow through with INewton's suggestion.

radar
 5 years ago
Best ResponseYou've already chosen the best response.0My suggestion is to use the first one:\[(1/2) \times h \times(h + 7)=22 cm sq\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.01/2*h(h+7)=22 1/2(h^2+h7)=22 2*1/2(h^2+h7)=2*22 h^2+h7=44 h^2h7=44=4444 h^2+h744=0 h=9 b=35

radar
 5 years ago
Best ResponseYou've already chosen the best response.0\[h ^{2}=7h44=0\] is correct. Which method did you use to get the values of h? quadratic formula, or factor method?

radar
 5 years ago
Best ResponseYou've already chosen the best response.0\[h ^{2}+7h44=0\] I meant to type sri

radar
 5 years ago
Best ResponseYou've already chosen the best response.0which method did you use to get 9 for h??

radar
 5 years ago
Best ResponseYou've already chosen the best response.09 doesn't go into 44 so something went wrong. Factor is the way to go. That equation will factor beautifully. Do you need some guidance in factoring that equation?

radar
 5 years ago
Best ResponseYou've already chosen the best response.0Well we are in luck in that the coefficient of h^2 is 1. Also we need to find to factors of 44 which will when combined equal 7. We have a hint since 44 is negative, one of these factors will positive and the other negative. Do you follow so far?

radar
 5 years ago
Best ResponseYou've already chosen the best response.0It will start looking like this: (h ?) (h +?) the ?*?=44 and ?+?=7

radar
 5 years ago
Best ResponseYou've already chosen the best response.0leahpl81872 can you think of two numbers when multiplied equal 44 and when added =+7 ? It is important cause one of these numbers is your answer!

radar
 5 years ago
Best ResponseYou've already chosen the best response.0which one do you think is the answer? the 11 or the 4 ???

radar
 5 years ago
Best ResponseYou've already chosen the best response.0very good, now remember the base was equal to the height + 7 cm, so what is the base?

radar
 5 years ago
Best ResponseYou've already chosen the best response.0Correcto, you seem to have a handle on this problem, good luck.

radar
 5 years ago
Best ResponseYou've already chosen the best response.0No problem, and INewton's input was helpful.
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