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