Question

If a + 1 by a is equal to 3 find the value of bracket a minus 1 by a bracket square​

Answer 1

Hey there!

Given,

a+1 = 3

To find:

(a - 1)^2

`{a}^(2) - 2.a.b + {b}^(2) \\ \\ a - 2a + 1 \\ \\ 1 + 1 = 2`

So, the answer is 2

Hope it help you