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Standard VIII

Mathematics

Addition and Subtraction of Algebraic Expression

iii Subtract ...

Question

Question 4 (iii)

Subtract $4 p^{2} q - 3 p q + 5 p q^{2} - 8 p + 7 q - 10 f r o m 18 - 3 p - 11 q + 5 p q - 2 p q^{2} + 5 p^{2} q .$

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Solution

(c) $5 P^{2} q - 2 p q^{2} + 5 p q - 11 q - 3 p + 18$
$4 p^{2} q + 5 p q^{2} - 3 p q + 7 q - 8 p - 10$
$\frac{(-) (-) (+) (-) (+) (+)}{P 2 q - 7 p q 2 + 8 p q - 18 q + 5 p + 28}$

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Question 4 (iii)

Subtract $4 p^{2} q - 3 p q + 5 p q^{2} - 8 p + 7 q - 10 f r o m 18 - 3 p - 11 q + 5 p q - 2 p q^{2} + 5 p^{2} q .$

Q. Subtract:

4 p^{2} q - 3 p q + 5 p q^{2} - 8 p + 7 q - 10

from

18 - 3 p - 11 q + 5 p q - 2 p q^{2} + 5 p^{2} q

(a) Subtract 4a − 7ab + 3b + 12 from 12a − 9ab + 5b − 3

(b) Subtract 3xy + 5yz − 7zx from 5xy − 2yz − 2zx + 10xyz

Subtract:
(i) $4 a - 7 a b + 3 b + 12$ from $12 a - 9 a b + 5 b - 3$
(ii) $3 x y + 5 y z - 7 x z$ from $5 x y - 2 y z - 2 x z + 10 x y z$
(iii) $4 p^{2} q - 3 p q + 5 p q^{2} - 8 p + 7 q - 10$ from $18 - 3 p - 11 q + 5 p q - 2 p q^{2} + 5 p^{2} q$

Q. (i)Subtract

4 a - 7 a b + 3 b + 12

from

12 a - 9 a b + 5 b - 3

.
(ii)Subtract

3 x y + 5 y z - 7 z x

from

5 x y - 2 y z - 2 z x + 10 x y z

.
(iii)Subtract

4 p^{2} q - 3 p q + 5 p q^{2} - 8 p + 7 q - 10

from

18 - 3 p - 11 q + 5 p q - 2 p q^{2} + 5 p^{2} q

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Addition and Subtraction of Algebraic Expression

Standard VIII Mathematics

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Question 4 (iii) Subtract 4p2q−3pq+5pq2−8p+7q−10from18−3p−11q+5pq−2pq2+5p2q.

(c) 5P2q−2pq2+5pq−11q−3p+18 4p2q+5pq2−3pq+7q−8p−10 (−)(−)(+)(−)(+)(+)P2q−7pq2+8pq−18q+5p+28

Question 4 (iii)

Subtract $4 p^{2} q - 3 p q + 5 p q^{2} - 8 p + 7 q - 10 f r o m 18 - 3 p - 11 q + 5 p q - 2 p q^{2} + 5 p^{2} q .$

(c) $5 P^{2} q - 2 p q^{2} + 5 p q - 11 q - 3 p + 18$
$4 p^{2} q + 5 p q^{2} - 3 p q + 7 q - 8 p - 10$
$\frac{(-) (-) (+) (-) (+) (+)}{P 2 q - 7 p q 2 + 8 p q - 18 q + 5 p + 28}$