Question

(a+b-c) of hole square=?​

Answer 1

${(a + b +( - c))}^{2}$

${a}^{2} + {b}^{2} + { (- c)}^{2} + \\ 2ab + 2bc - 2ca$

${a}^{2} + {b}^{2} - {c}^{2} + \\ 2ab + 2bc - 2ca$

hope it helps you

Answer 2

Answer:(a+b-c)²=a²+b²+(-c)²+2ab+2b(-c)+2(-ca)

Step-by-step explanation:

we will put the identity of (a+b+c)²=a²+b²+c²+2ab+2bc+2ca

and ithe the bracket we will write (-c)