Question

3. Add the following terms using the horizontal

(a) 3x2, 4x2, - 7x2​

Answer 1

Answer:

Hello mate..

Step-by-step explanation:

Hi ,

Let A = 2x² - 6x + 3 ,

B = -3x² - x -4 ,

C = 1 + 2x - 3x² = -3x² + 2x + 1 ,

Horizontal method :

A + B + C

= (2x²-6x+3)+(-3x²-x-4)+(1+2x-3x²)

= 2x²-6x+3-3x²-x-4+1+2x-3x²

= 2x²-3x²-3x²-6x-x+2x+3-4+1

= (2-3-3)x² + ( -6-1+2)x + 0

= -4x² - 5x ------( 1 )

Vertical Method :

A + B + C

= 2x² - 6x + 3

- 3x² - x - 4

-3x² + 2x + 1

_____________

- 4x² - 5x + 0 ----( 2 )

_____________

From ( 1 ) and ( 2 ) , we conclude

that. By using both methods we

get the same answer.

I hope this helps you.

: )

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