Step-by-step explanation:
(n-m) out of n
not sure if this is correct or something....
200+200+200+200+200+200+200+200+200
Hello :
y = 3x²+9x
= 3(x² + 3x )
= 3 ( x² +2(3/2)x +(3/2)²) -(3/2)²)
= 3((x+3/2)² -9/4)
y = 3 (x+3/2)² -27/4
<span>the x-coordinate of the vertex is : - 3/2</span>
Answer:

Step-by-step explanation:
Let's write the left hand side as a negative power, and 9 as a power of 3:
At this point, for the equality to still stand, the exponents have to be equal:

The answer should be b¹². You add the exponents of each constant. In the case of the simple b the exponent would be one.