Question

simplify (x+y+z)2-(x+y-z)2​

Answer 1

Answer:

2x +2y+2z-2x-2y+2z= 4z

Answer 2

hey.❗❗

simplify (x+y+z)2-(x+y-z)2

solution :--

we know

(a+b+c)²=a²+b²+c²+3ab+2bc+2ca

so,

(x+y+z)²-(x+y-z)²

=(x²+y²+z²+2xy+2yz+2zx)-((x²+y²+z²+2xy-2yz-2zx)

=(x²+y²+z²+2xy+2yz+2zx-x²-y²-z²-2xy+2yz+2zx)

= 2yz+2zx

I hopes its help's u

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@Abhi.❤❤