Algebra 1, semester 2; ! what are the zeros of the function? f(x)=2x^2+16x+30

If you're asking questions like this, it generally means you have been given at least one tool for answering questions of this sort. Usually, that tool is the "quadratic formula." Factoring is another tool that is useful.

Here, you can factor this by first noticing that all coefficients are even, so a factor of 2 can be removed.

... f(x) = 2(x² +8x +15)

Since you're familiar with multiplying binomials, you know that

... (x +p)(x +q) = x² + (p+q)x +pq

Comparing coefficients, we see

... pq = 15

... p+q = 8

Now, 15 can be factored as 1×15 or 3×5. The latter two factors sum to 8, so we could choose p=3, q=5, and our factorization of f(x) can be

... f(x) = 2(x +3)(x +5)

Finding the zeros means finding the values of x that make f(x) = 0. That is, we want x such that

... 2(x +3)(x +5) = 0

We know that either factor being zero will make the product zero, so the zeros are ...

... x = -3 or x = -5

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.

describing distributions is one of the key skills you’ll need to earn a high score on the ap statistics exam. if you need proof of this, just flip through some past exam questions, which can be found at the collegeboard website. you’ll notice that the first free response question is almost always a question requiring you to look at a graph and describe it.

step-by-step explanation: just trying to get points sorry : (