Question

(3x+1) (3x-1) find ratio​

Answer 1

Step-by-step explanation:

y=3x−1 cuts the rectangle at (21,21),(32,1)

Area of △MND=21×MD×DN

                     =21×21×(32−21)=41×61=241

Area of rectangle =21×1=21

Required Ratio =21−241241=1:11

Answer 2

$\frac{(3x + 1)}{(3x - 1)}$

Let's make the ratio at x = 1

$\frac{(3 \times 1 + 1)}{(3 \times 1 - 1)} = \frac{4}{2} = \frac{2}{1}$

So, the ratio will be 2:1 ✔✔