Question
\( 11 \mathrm{~m}^{2}+86 m-16=\square \) (Type your answer in factored form.)
Ask by Guerrero Harrington. in the United States
Jan 31,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
\((11m - 2)(m + 8)\)
Solution
To factor the quadratic expression \( 11m^2 + 86m - 16 \), follow these steps:
1. **Identify the coefficients:**
- \( a = 11 \)
- \( b = 86 \)
- \( c = -16 \)
2. **Find two numbers that multiply to \( a \times c = 11 \times (-16) = -176 \) and add up to \( b = 86 \).**
- The numbers **88** and **-2** satisfy this condition because:
- \( 88 \times (-2) = -176 \)
- \( 88 + (-2) = 86 \)
3. **Rewrite the middle term using these numbers:**
\[
11m^2 + 88m - 2m - 16
\]
4. **Factor by grouping:**
\[
(11m^2 + 88m) + (-2m - 16) = 11m(m + 8) - 2(m + 8)
\]
5. **Factor out the common binomial factor \((m + 8)\):**
\[
(m + 8)(11m - 2)
\]
**Final Factored Form:**
\[
(11m - 2)(m + 8)
\]
**Answer:**
\((11m - 2)(m + 8)\)
Answered by UpStudy AI and reviewed by a Professional Tutor
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Beyond the Answer
To factor the quadratic expression \( 11 \mathrm{~m}^{2}+86 m-16 \), we look for two numbers that multiply to \( 11 \times -16 = -176 \) and add up to \( 86 \). The numbers \( 88 \) and \( -2 \) fit the bill! We can rewrite the expression as: \( 11m^2 + 88m - 2m - 16 \). Now, grouping: \( (11m^2 + 88m) + (-2m - 16) \) Factoring each group gives us: \( 11m(m + 8) - 2(m + 8) \). Now, we can factor out the common binomial: \( (11m - 2)(m + 8) \). So, \( 11 \mathrm{~m}^{2}+86 m-16 = (11m - 2)(m + 8) \).