Question

from the sum of 2x²-3x+7 and -7²+2x+1 subtraet 3x²-4x+1​

Answer 1

Answer:

Question:

From the sum of 2x² - 3x + 7 and -7x² + 2x + 1, subtract 3x² - 4x + 1.​

What to find?

The sum of 2x² - 3x + 7 and -7x² + 2x + 1 and then subtract 3x² - 4x + 1 after finding the sum.

Solution:

First find the sum.

⇒(2x² - 3x + 7) + (-7x² + 2x + 1)

After removing the brackets,

⇒ 2x² - 3x + 7 - 7x² + 2x + 1

After rearranging the like terms,

⇒ 2x² - 7x² - 3x + 2x + 7 + 1

After solving the like terms,

⇒ -5x² - 1x + 8

Now, subtract  3x²- 4x + 1​ from -5x² - 1x + 8.

⇒ (-5x² - 1x + 8) - (3x²- 4x + 1​)

After removing the brackets,

⇒ -5x² - 1x + 8 - 3x² + 4x - 1

After rearranging the like terms,

⇒ -5x² - 3x² - 1x + 4x + 8 - 1

After solving the like terms,

⇒ -8x² + 3x + 7

∴ Therefore the answer is -8x² + 3x + 7