Answer:
I also need this one
Step-by-step explanation:
Given:
<span>y = -x2 + 4x + 8
y = 2x2 + 16x + 18
y = -2x2 + 5x + 14
y = -x2 + 17x + 7
y = 2x2 + 11x + 5
y = -2x2 + 6x + 5
Standard formula : y = ax</span>² + bx + c ; -(b/2a) is the x-coordinate of the vertex. Substitute the value of x to find the value of y.
X=2 because 3 times 2 is 6 and then you add 6 and 7 together and get 13.
For this case we must solve the following questions:
Question 1:
We should simplify the following expression:

Applying double C we have:

By definition of multiplication of powers of the same base we have to place the same base and add the exponents:
Canceling common terms:

Answer:
Option A
Question 2:
We should simplify the following expression:

So, we have:

Simplifying common terms:

Answer:
Option D
Question 3:
We factor the following expressions to rewrite the experience:
<em>
: </em>We look for two numbers that multiplied give 10 and added 7:

<em>
</em> We look for two numbers that multiplied give -50 and added -5:

<em>
</em>
Rewriting the given expression we have:

We simplify common terms in the numerator and denominator we have:

Answer:
Option D