Question

(2x+5x)2=100
find the value of x​

Answer 1

(2x+5x)2 = 100

10x × 2 = 100

20x = 100

x = 100 ÷ 20 = 5

Answer 2

Answer:

$= = > (2x + 5x)2 = 100 \\ = = > (7x)2 = 100 \\ = = > 14x = 100 \\ = = > \frac{100}{14} = x \\ = = > 7.142 = x$

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