Question

solve this maths question

Answer 1

Answer:

7is the answer of this questions..............

Answer 2

✪ᴀɴsᴡᴇʀ✪

• xyz = 4.

★ᴇxᴘʟᴀɪɴᴀᴛɪᴏɴ★

We know that

• $x^2(y+z) + y^2(z+x)$

$\:\:\:\:\:\:\:\: + z^2(x+y) + 2xyz$

$\:\:\:\:\:= (x+y)(y+z)(z+x) ....(1)$

• $x^2(y+z) + y^2(z+x)$

$\:\:\:\:\:\:\:\: + z^2(x+y) + 3xyz$

$\:\:\:\:\:= (x+y+z)(xy+yz+zx)....(2)$

Substracting (1) from (2), we get

$\to xyz = (x+y+z)(xy+yz+zx) - (x+y)(y+z)(z+x)$

$\to xyz = 5\times 8 - 36$

$\to xyz = 40 - 36$

$\to xyz = 4$