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What is the value of x? 2x x +4 X+1 12

What is the value of x? 2x x +4 X+1 12
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4 votes
What is the value of x?
2x
x +4
X+1
12

What is the value of x? 2x x +4 X+1 12-example-1
User Jakc
by
8.7k points

1 Answer

6 votes

Answer:

x = 8

Explanation:

AB/AC = BD/DC

2x/12 = x+4/x+1

12x + 4 = 2x² + 2x

2x² - 10x - 48 = 0

x² - 5x - 24 = 0

(x-8) (x+3) = 0

x = 8 (or) x= -3 (impossible)

x = 8

User Vladimir Veljkovic
by
7.8k points
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