Question

If 2x × 5x = 1000 , then x = ?

Answer 1

Answer:

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Step-by-step explanation:

$2x \times 5x = 1000 \\ = > 10 {x}^{2} = 1000 \\ = > {x}^{2} = \frac{1000}{10} \\ = > {x}^{2} = 100 \\ = > x = \sqrt{100} \\ = > \color{red}{ \boxed{ x = 10}}$

Answer 2

Answer:

2x × 5x = 1000

10x = 1000

x= 1000 ÷ 10 = 100

x= 100