Adding Polynomial Expressions. (

SIMPLIFY

what algebraic expression must be added to the sum of 3x^2+4x+8 and 2x^2-6x+3 to give 9x^2-2x-5 as the result?

add all the numbers and check the ones place.

the answer is 486. as the ones place is more than 4, the estimation will be the next 10 ie, 490

the correct answers i think are b. and d.

give me brainliest if it is correct!

y= 2x+7

changed to y= 5x +7

as slope is increased from 2 to 5

therefore it would be less steeper

so, option d) is correct

1. 2

2. 11

3. 5

4. 6

5. 7

6. 5

7. -1

8. 1

step-by-step explanation: