Question

If root x + 9= root 784 then x

Answer 1

Answer:

Step-by-step explanation:

(√x+9) ^2=(√784) ^2

x+9=784

X=775

Answer 2

Answer: The value of x be, 361

Given, an equation √x + 9 = √784

the value of x is to be found.

Now, as the square root of 784 can be found by prime factorization method,

784 = 2×2×2×2×7×7

from the above prime factors, the square root of 784 be 28

now, on substituting the values

√x + 9 = 28

√x = 28 - 9

√x = 19

Now, squaring both the sides

(√x)² = 19²

x = 361

The value of x be, 361

To conclude in one sentence, the value of x in the above given equation is 361.

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