Question

3√7 + 7√63 − √7 सोपे रूप द्या.​

Answer 1

Answer:

Correct option is

D

25

3

−3

2

7

48

−

72

−

27

+3

2

=7×4

3

−6

2

−3

3

+3

2

=(28−3)

3

+(3−6)

2

=25

3

−3

2

Answer 2

Answer:

$23\sqrt{7}$ is the simplest value of $3 \sqrt{7} + 7 \sqrt{63} - \sqrt{7}$.

Step-by-step explanation:

Explanation:

According to the question we need to convert the given value in  simplest form.

Given, $3 \sqrt{7} + 7 \sqrt{63} - \sqrt{7}$

This can be written as ,

$3 \sqrt{7} + 7 \sqrt{3 . 3. 7} - \sqrt{7}$

⇒$3 \sqrt{7} + 7(3) \sqrt{7} - \sqrt{7}$

⇒$3 \sqrt{7} + 21 \sqrt{7} - \sqrt{7}$

Now we take $\sqrt{7}$ as common,

⇒$\sqrt{7}(3 + 21 -1)$ = $23\sqrt{7}$

Final answer:

Hence, the simplest value of $3 \sqrt{7} + 7 \sqrt{63} - \sqrt{7}$ is $23\sqrt{7}$.

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