CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Introduction and Value of Pi

Simplify:ii 7...

Question

Simplify:
(ii) $7 n^{2} - 9 n^{2} + 3 n^{2}$

Open in App

Solution

Step: Find the value of $7 n^{2} - 9 n^{2} + 3 n^{2}$
$7 n^{2} - 9 n^{2} + 3 n^{2}$
$= (7 - 9 + 3) n^{2}$
$= (10 - 9) n^{2}$
$= n^{2}$
Hence, the answer is $n^{2} .$

Suggest Corrections

thumbs-up

2

Similar questions

Q. Draw and prove the identity:

(4 m + 3 n)^{2} = 16 m^{2} + 9 n^{2} + 24 m n

Q. Subtract the sum of

(8 x - 6 y + 9 n^{2})

(- 3 x - 4 y - n^{2})

from the sum of

(9 x - 4 y + 3 n^{2})

(- x - y - n^{2})

Q. Subtract the sum of 3l − 4m − 7n² and 2l + 3m − 4n² from the sum of 9l + 2m − 3n² and − 3l + m + 4n² .....

Subtract the sum of $3 l - 4 m - 7 n^{2} a n d 2 l + 3 m - 4 n^{2} from the sum of 9 l + 2 m - 3 n^{2} a n d - 3 l + m + 4 n^{2} . . . . . . . .$

Question 6(ii)
Simplify:
(ii) $7^{2} \times 2^{2}$

View More

Join BYJU'S Learning Program

explore_more_icon

Explore more

Introduction and Value of Pi

Standard VII Mathematics

Join BYJU'S Learning Program

CrossIcon