Question
upstudy study bank question image url

Factor. \( 6 a^{2}-7 a-3 \) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. \( 6 a^{2}-7 a-3=\square \) \( \quad \) (Factor completely.) B. The polynomial is prime.

Ask by Daniel Bernard. in the United States
Feb 24,2025

Upstudy AI Solution

Tutor-Verified Answer

Answer

\( 6a^{2} - 7a - 3 = (2a - 3)(3a + 1) \)

Solution

To factor 6a² – 7a – 3, we look for two numbers whose product is 6 × (–3) = –18 and whose sum is –7. The numbers –9 and 2 work since (–9) + 2 = –7 and (–9) × 2 = –18. Now rewrite the middle term –7a as –9a + 2a:  6a² – 9a + 2a – 3. Group the terms in pairs:  (6a² – 9a) + (2a – 3). Factor the greatest common factor from each group:  3a(2a – 3) + 1(2a – 3). Notice the common binomial factor (2a – 3):  (2a – 3)(3a + 1). So, the completely factored form is (2a – 3)(3a + 1). Select option A with the answer filled in as:  6a² – 7a – 3 = (2a – 3)(3a + 1).

Answered by UpStudy AI and reviewed by a Professional Tutor

error msg
Explain
Simplify this solution

The Deep Dive

To factor the polynomial \( 6a^{2}-7a-3 \), we look for two numbers that multiply to \( 6 \times -3 = -18 \) and add to \( -7 \). The numbers \(-9\) and \(2\) fit the bill perfectly! We can then rewrite the middle term: \[ 6a^{2}-9a+2a-3 \] Now, group the terms: \[ (6a^{2}-9a)+(2a-3) \] Factoring out what we can gives us: \[ 3a(2a-3)+1(2a-3) \] Combining these yields: \[ (3a+1)(2a-3) \] So we conclude that: \[ 6a^{2}-7a-3=(3a+1)(2a-3) \] When dealing with polynomials, it's important to remember that patience is key. The process of factoring is like untangling a knot; it requires the right approach, and sometimes you might miss a detail. Common mistakes include overlooking negative signs or miscalculating the product and sum of coefficient pairs. Always double-check your work!

Try Premium now!
Try Premium and ask Thoth AI unlimited math questions now!
Maybe later Go Premium
Study can be a real struggle
Why not UpStudy it?
Select your plan below
Premium

You can enjoy

Start now
  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to Answer and Solution
  • Full Access to PDF Chat, UpStudy Chat, Browsing Chat
Basic

Totally free but limited

  • Limited Solution
Welcome to UpStudy!
Please sign in to continue the Thoth AI Chat journey
Continue with Email
Or continue with
By clicking “Sign in”, you agree to our Terms of Use & Privacy Policy