Question

Expand : (X + Y - Z)2​

Answer 1

Answer:

(X + Y - Z)2= ...2x+2y-2z

Answer 2

Answer:

as we know formula for (a+b+c)^2=a2+b2+c2-ab-bc-ca

so,

here,

a=x

b=y

c=-z

THEREFORE USING THE FORMULA WE GET THE ANSWER

x^2+y^2+(-z) ^2 -xy- y(-z) -(-z) x

x^2+y^2-z^2-xy + y +zx

pls mark me brainliest pls