@Miracrown @zepdrix @ganeshie8 can you guys please help me

Question

anonymous · Answer

@freckles

anonymous · Answer

@aryandecoolest

anonymous · Answer

r u good at factoring integers and polynomials

anonymous · Answer

@aryandecoolest

miracrown · Answer

I'll help you. Can I please see your question?

anonymous · Answer

Which equation would best help solve the following problem?

 

    Adina has a rectangular garden that measures 9 m wide by 13 m long. She wants to increase the area to 192 m2 by increasing the width and length by the same amount. What will be the dimensions of the new garden?

 
	
	
 
A.
	

192 = (9)(13)

 
	
 
B.
	

192 = (9)(13 + x^2)
	
 
C.
	

192 = (9 – x)(13 – x)
	
 
D.
	

192 = (9 + x)(13 + x)

miracrown · Answer

What do you think should be the answer?

anonymous · Answer

d

anonymous · Answer

solve this. since it is increased by equal proportions: and area of rectangle is length * breadth 
(9+x)(13+x)=192
factorise it ....

miracrown · Answer

Let us say that the increment is just x then,
area = 192 
= (9+x)*(13+x)
hence we end up with a quadratic equation in x, which is

miracrown · Answer

(9+x)*(13+x) -192 =0

miracrown · Answer

Yes, D is the answer :)

anonymous · Answer

further solving will give you. x=-25 and x=3(accepted) ....Not required as per ur question

anonymous · Answer

@Miracrown can u help me with more please