Question

simplify polynomial 2x^2+6x-7x+8-3x^2+1​

Answer 1

Answer: $-x^2-x+9$

 

Step-by-step explanation:

To simplify the given polynomial $2x^2+6x-7x+8-3x^2+1$ we need to add the like terms. Then we get:

$2x^2+6x-7x+8-3x^2+1=(2x^2-3x^2)+(6x-7x)+(8+1)=-x^2-x+9$

Therefore, we get that the polynomial simplified is:

$-x^2-x+9$

Which is a trinomial ( A polynomial that has three terms) of degree 2 (Because the highest exponent is 2).

Answer 2

Answer:

Final answer is $-x^2-x+9$.

Step-by-step explanation:

Given polynomial is $2x^2+6x-7x+8-3x^2+1$.

Now we need to simplify the given polynomial so we can begin with combining like terms.

$2x^2+6x-7x+8-3x^2+1$

$=2x^2-3x^2+6x-7x+8+1$

$=(2-3)x^2+(6-7)x+(8+1)$

$=(-1)x^2+(-1)x+(9)$

$=-x^2-x+9$

Hence final answer is $-x^2-x+9$.