Question

Add 2x+9y-7z, 3y+z 2z- 4y-x

Answer 1

$Let \:A = 2x+9y-7z, B = 3y+z , C= 2z- 4y-x$

/* According to the problem given */

$A + B + C \\= </p><p>2x+9y-7z + 3y+z + 2z- 4y-x$

/* Rearranging the to Ike terms , we get */

$= 2x - x + 9y + 3y - 4y -7z + z + 2z \\= (2-1)x+(9+3-4)y+(-7+1+2)z\\= 1x+8y-4z$

Therefore.,

$\red { Sum \:of \:the \: polynomials } \green {= 1x+8y-4z}$

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