Question

If (x + 1) is the mean proportion between (x – 3) and (x + 7), find the value of x.​

Answer 1

Answer:(x+1) = ✓(x-3)(x+7)

(x+1)² = (x-3)(x+7)

x²+2x+1 = x²+4x-21

2x = 22x = 11

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Answer 2

Step-by-step explanation:

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