Math, asked by deepakjha8, 6 months ago

from the sum of (x2+x+1) and (x2

-x+1) subtract (-x

2

-x+1)​

Answers

Answered by memanan03
4

+ x + 1 + - x + 1

= 2x² + 2

2x² + 2 - (-x² - x + 1)

= 2x² + 2 + + x - 1

= 3x² + x + 1

Answered by sare83
3

Answer:

(x² + x + 1) + (x² - x + 1) - (-x² - x + 1) = 3x² + x +1

Step-by-step explanation:

Let us consider,

sum of (x² + x + 1) & (x² - x + 1)

⇒ (x² + x + 1) + ( x² - x + 1)

⇒ 2x² + 2 + x - x

⇒ 2x² + 2

∴Sum of (x² + x + 1) & (x² - x + 1) = 2x² + 2 → (1)

And now, according to the given data,

From the sum of (x² + x + 1) & (x² - x + 1) subtract (-x² - x + 1)

⇒ (2x² + 2) - (-x² - x + 1)           (∵ from eq.(1) )

⇒ 2x² + 2 + x² + x - 1

⇒ 3x² + x + 1

∴ (x² + x + 1) + (x² - x + 1) - (-x² - x + 1) = 3x² + x + 1

HOPE THIS WOULD BE HELPFUL FOR YOU

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