A rectangle 15

A rectangle is 5 cm longer its width. It areas is 6 cm square. What are the dimensions of the rectangle.

Correct answer:

a =  6 cm
b =  1 cm

Step-by-step explanation:

a=5+b a b = 6  a (a5)=6  a (a5)=6 a25a6=0  p=1;q=5;r=6 D=q24pr=5241(6)=49 D>0  a1,2=2pq±D=25±49 a1,2=25±7 a1,2=2.5±3.5 a1=6 a2=1  a=a1=6=6 cm

Our quadratic equation calculator calculates it.

b=a5=65=1 cm



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