There are 2 roots so the only way to complete the square is,
Just factor 2 out of 2x^2+8x (just ignore the -9) then find the number that will make the terms be able to complete the square.
then complete the square and multiply 2 inside the brackets.
subtraction as you already get the vertex form and know how to complete the square.
Vertex Form:
Answer:
Step-by-step explanation:
Answer:
x = 15
Step-by-step explanation:
Similar triangles and proportional side lengths.
10/4 = x/6
5/2 = x/6
2x = 5 * 6
2x = 30
x = 15