Question

. Add the following by column and horizontal method:
(i) 2x – 3y,4y - z and 22 + x
(ü) 3ab + bc - ca, 4ab – 5bc and 3ca – 2ab
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Answer 1

$Verticalmethod</p><p>2x+9y−7z</p><p>3x+3y+z</p><p>2x−4y−2</p><p> </p><p> </p><p>7x+8y−72</p><p> </p><p> </p><p>Horizontalmethod</p><p>2x+9y−72+3x+3y+2+2x−4y−2</p><p>=7x+8y−72Ans(2)</p><p>1=2$