6 Simplify the following expression.
(9x2 - 3x + 7) + (-3x2 + 2)

A. 6x2 + 9
B. 12x2 - 3x + 5
C. 6x2 - 3x + 9
D. 6x2 + 3x + 9

The above expression is not in its simplest form, and we need to simplify it, that is what asked in the question.

Given equation,

First of all, let's open the parentheses to combine the like terms for simplifying.

Arranging the like terms, x² with x², x with x and constant terms near to each other.

Simplying further,

So, the correct option is C

━━━━━━━━━━━━━━━━━━━━

dsfdsf

step-by-step explanation:

fddsf

(- 1, 0 )

step-by-step explanation:

an x- intercept is where the function crosses the x- axis.

to find the x- intercept/s look for the value of x when f(x) = 0

from the given table there are 3 values of x where f(x) = 0

when x = - 1, x = 2, x = 3

the one that is listed is (- 1, 0 )