Julietsaraniana45idn
Answered

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LESSON 3 ACTIVITY
Answer the following:
1. Find the sum of 9x2 - 2x + 7 and -6x2 + 5x - 8.

2. Find the sum of 10x + y and -9x - 7.

3. Find the sum of 24k + 9m +10 and 10k - m +20.

4. Subtract 8x + 4y by 5x - 3y.

5. Subtract 39x - 75y + 287 from 47x-52y + 3z.
​

Sagot :

Ednacolipano07idn

Answer:

1.3x+3x+7 and -8

2.xty-7

3.24k+8m+100 and k+20

4.8x+20y bx -3y

5.9x-15+13489 from x -52y+3z

Step-by-step explanation:

yan sana makatulong btw sa no.4 yung 20y may numner 2 yun sa taas pakilagay nlng

SecretNumberidn

ANSWER:

1. (9x² - 2x + 7) + (-6x² + 5x - 8)

  • 9x² - 2x + 7 - 6x² + 5x - 8
  • 3x² - 2x + 7 + 5x - 8
  • 3x² + 3x + 7 - 8
  • 3x² + 3x - 1

[tex]\underline{\sf{Answer:}}[/tex]

  • 3x² + 3x - 1

====================

2. (10x + y) + (-9x - 7)

  • 10x + y - 9x - 7
  • x + y - 7

[tex]\underline{\sf{Answer:}}[/tex]

  • x + y - 7

====================

3. (24k + 9m + 10) + (10k - m + 20)

  • 24k + 9m + 10 + 10k - m + 20
  • 34k + 9m + 10 - m + 20
  • 34k + 8m + 10 + 20
  • 34k + 8m + 30

[tex]\underline{\sf{Answer:}}[/tex]

  • 34k + 8m + 30

====================

4. (8x + 4y) - (5x - 3y)

  • 8x + 4y - 5x - 3y
  • 3x + 4y + 3y
  • 3x + 7y

[tex]\underline{\sf{Answer:}}[/tex]

  • 3x + 7y

====================

5. (39x - 75y + 287) - (47x - 52y + 3z)

  • 39x - 75y + 287 - 47x - 52y + 3z
  • -8x - 75y + 287 - 52y + 3z
  • -8x - 23y - 3z + 287

[tex]\underline{\sf{Answer:}}[/tex]

  • -8x - 23y - 3z + 287

====================

[tex]{\pink{\underline{\sf{SecretNumber}}}}[/tex]