Simplify (3x^2 + 2x – 5) + (5x^2 – 4x + 6)??? please solve?

3x^2 + 2x - 5 + 5x^2 - 4x +6

add like terms

3x^2 + 5x^2 = 8x^2
2x - 4x = -2x
-5 + 6 = 1

8x^2 - 2x + 1 <--- answer.

(3x^2 + 2x - 5) + (5x^2 - 4x + 6)
Step 1: Combine 3x^2 and 5x^2 together since they both are to the power of two. Since there is a plus sign between the two terms and they are both positive just add.
Step 2: The coefficient of 2 in the first term is x. In the second term the coefficient of -4 is also x. Therefore we will combine these terms. 2x + -4x. Same as 2x - 4x, which equals -2x.
Step 3: The coefficient of -5 and 6 is 1. So combine them. -5 + 6, or 6 -5. This equals 1. So your answer should like this
ANSWER: 8x^2 - 2x + 1

8x² - 2x + 1

(3x^2 + 2x - 5) + (5x^2 - 4x + 6)
= 3x^2 + 2x - 5 + 5x^2 - 4x + 6
= 3x^3 + 5x^2 + 2x - 4x - 5 + 6
= 8x^2 - 2x + 1

ok so start combining like terms...

(3x^2 + 2x – 5) + (5x^2 – 4x + 6)=0 (im assuming its equal to 0)
3x^2 + 2x – 5 + 5x^2 – 4x + 6=0
8x^2 - 2x + 1=0

now factor

(4x + 1)(2x - 1)=0
4x + 1=0 or 2x - 1=0
4x=-1 or 2x=1
x=-1/4 or x=1/2

(8x^2-2x+1) thats the main solution, if you need the roots you have to separate it (8x-4) (8x+2) and u have to reduce to (2x-4) and (4x+1) so you get the roots 2 and -1/4 thats the full solution

8x^2 - 2x + 1

you just combine like terms.

34x^2-2x+1

hope it's rite!

we can only add like terms together, so x^2 with x^2, x with x and a number with a number
thus,
(3x^2 + 2x – 5) + (5x^2 – 4x + 6) =
3x^2 + 5x^2 + 2x – 4x - 5 + 6 =
8x^2 -2x -1