Question

please answer the question fast ​

Answer 1

Answer:

(a+b+c)^2=a^2+b^2+c^2+2ab+2bc+2ac

(a-b+c)^2=a^2+b^2+c^2-2ab-2bc+2ac

=x^2+4y^2+9z^2-4xy-12yz+6xz

Answer 2

Answer:

12yz +6xz +4y² -4xy +x²

Step-by-step explanation:

x = x times 1

-2y = -2 times y

+3z = 3 times z

all this is squared, which means that it is multiplied by itself.

refer given attachment for the solving.

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