The width

The width of a rectangular garden is 4 m less than the length. If the area of a rectangular garden is 96 square meters, what is the dimension of the garden?

Correct answer:

a =  8 m
b =  12 m

Step-by-step explanation:

S=96  S=ab a=b4  S=a(a+4)  96=a (a+4) a24a+96=0 a2+4a96=0  p=1;q=4;r=96 D=q24pr=4241(96)=400 D>0  a1,2=q±D2p=4±4002 a1,2=4±202 a1,2=2±10 a1=8 a2=12   Factored form of the equation:  (a8)(a+12)=0  a=a1=8=8 m

Our quadratic equation calculator calculates it.

b=a+4=8+4=12 m

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