Add (7x^2-2x+19)+(2x^2-7x+4) and show me the steps of how you got the answer

Simplify

7x^2 - 2x + 19 + 2x^2 - 7x + 4

Collect like terms;

(7x^2 + 2x^2) + (-2x - 7x) + (19 + 4)

Simplify

9x^2 - 9x + 23

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

answer: the answer is e

step-by-step explanation: