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How to solve 2x(x+3)=2x^2+15

2 Answers

2 votes

Explanation:

2x^2 + 6x = 2x^2 + 15

2x^2-2x^2+6x=15

6x = 15

x= 5/2 when simplified

User Mcritz
by
8.7k points
4 votes

Answer: x = 5/2 = 2.5

Explanation:

Given expression

2x (x + 3) = 2x² + 15

Expand parentheses and apply the distributive property

2x · x + 2x · 3 = 2x² + 15

2x² + 6x = 2x² + 15

Subtract 2x² on both sides

2x² + 6x - 2x² = 2x² + 15 - 2x²

6x = 15

Divide 6 on both sides

6x / 6 = 15 / 6

x = 15/6


\boxed{x=(5)/(2) }

Hope this helps!! :)

Please let me know if you have any questions

User ThomasAJ
by
7.8k points

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