mrsmelenciano mrsmelenciano

16-03-2018
Mathematics

contestada

The area of a rectangle garden is 2g^2+34g+140. If the width is 2g+14 what is the length?

Respuesta :

calculista calculista

20-04-2018

we know that
[area of rectangle]=length*width
area=2g²+34g+140
width =2g+14

step 1
find the roots of 2g²+34g+140

using a graph tool-----> to resolve the second order equation
see the attached figure
the solution is
g=-10
g=-7
so
2g²+34g+140=(2g+14)*(g+10)

therefore

the length is (g+10)

the answer is
the length is (g+10)

Ver imagen calculista

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