Solving the Equation: 2(x + 1) + 3x = x(x + 1) – A Comprehensive Guide

When faced with algebraic equations, simplifying both sides and solving for the variable can sometimes seem challenging. One common equation that students and math enthusiasts often explore is:
2(x + 1) + 3x = x(x + 1)

This equation represents a powerful exercise in algebraic manipulation and problem-solving. In this SEO-optimized article, we break down the full process of solving 2(x + 1) + 3x = x(x + 1), providing clear steps, real-world applications, and useful keywords to help improve search visibility for educators and learners alike.

Understanding the Context


Understanding the Equation

The equation
2(x + 1) + 3x = x(x + 1)
contains both linear and quadratic components. The left side involves distribution and combination of like terms, while the right side expands into a polynomial. Solving this equation helps reinforce skills in:

  • Distributing parentheses
  • Combining like terms
  • Expanding binomials
  • Solving first-degree and quadratic equations

Key Insights


Step-by-Step Solution

Step 1: Expand Both Sides

Start by expanding each term using algebraic properties.

Left-hand side (LHS):
2(x + 1) + 3x
= 2·x + 2·1 + 3x
= 2x + 2 + 3x
= (2x + 3x) + 2
= 5x + 2

🔗 Related Articles You Might Like:

📰 #### 216000 📰 A science educator is developing a simulation where a rocket accelerates at 3 m/s² for 15 seconds. What is the final velocity if it starts from rest? 📰 Using the formula: Final velocity = Initial velocity + (acceleration × time) = 0 + (3 m/s² × 15 s) = 45 m/s. 📰 From Page To Screen The Shocking Twists In The Lotr Anime You Must Watch 📰 From Page To Viral Inside The Most Iconic Magazine Covers Every Eye Is Locked On 📰 From Paper To Log Cabin This Familys Epic Transformation Will Blow Your Mind 📰 From Past Legends To Future Adventures The Epic Revelations In The Zelda Timeline 📰 From Pasture To Premium How Limousin Cattle Are Taking The Meat Market By Storm 📰 From Peanuts To Fame Lucy Charlie Browns Hidden Legacy Youve Never Seenget Ready 📰 From Peanuts To Legend Linus Van Pelts Untold Hero Story Revealed 📰 From Phone Screens To Heartbeats The Hottest Kiss Me Through The Phone Lyrics You Need To Hear 📰 From Prescott To Phoenix Louie Northern Arizonas Viral Journey Thats Taking Over The Web 📰 From Protest Anthems To Bull Rage The Hip Hop Burn Heard Worldwide 📰 From Pup To Powerhouse The Littleleo Evolution Revealed Instantly 📰 From Puppy To Internet Sensation Lillipups Rise Is Unstoppableclick To See 📰 From Red Carpet To Real Life Get The Light Blue Suit That Influencers Cant Stop Wearing 📰 From Reis To Stir Fryleftover Chicken Recipes Thatll Save Your Dinner 📰 From Retirement To Rage Lethal Weapon 4S Secret Ending That Updated The Franchise Forever

Final Thoughts

Right-hand side (RHS):
x(x + 1)
= x·x + x·1
= x² + x

So the equation becomes:
5x + 2 = x² + x


Step 2: Move All Terms to One Side

To solve for x, bring all terms to one side to form a standard quadratic equation:
x² + x – 5x – 2 = 0
x² – 4x – 2 = 0


Step 3: Solve the Quadratic Equation

Use the quadratic formula:
x = [−b ± √(b² – 4ac)] / (2a)
For x² – 4x – 2 = 0,
a = 1, b = –4, c = –2

Calculate the discriminant:
Δ = b² – 4ac = (−4)² – 4(1)(–2) = 16 + 8 = 24

Roots:
x = [4 ± √24] / 2
√24 = √(4×6) = 2√6, so
x = [4 ± 2√6] / 2
x = 2 ± √6