Subtract 4p 2 q – 3pq + 5pq 2 – 8p + 7q – 10 from 18 – 3p – 11q + 5pq – 2pq 2 + 5p 2 q

(18 – 3p – 11q + 5pq – 2pq 2 + 5p 2 q) – (4p 2 q – 3pq + 5pq 2 – 8p + 7q – 10) = 18 – 3p – 11q + 5pq – 2pq 2 + 5p 2 q – 4p 2 q + 3pq – 5pq 2 + 8p – 7q + 10 =18+10 -3p+8p -11q – 7q + 5 pq+ 3pq- 2pq^2 – 5pq^2 + 5 p^2 q – 4p^2 q = 28 + 5p – 18q + 8pq – 7pq 2 + p 2 q

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Question:

Subtract 4p²q – 3pq + 5pq² – 8p + 7q – 10 from 18 – 3p – 11q + 5pq – 2pq² + 5p²q

CBSE Class VIII

Updated On: Nov 23, 2024

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Solution and Explanation

(18 – 3p – 11q + 5pq – 2pq² + 5p²q) – (4p²q – 3pq + 5pq² – 8p + 7q – 10)
= 18 – 3p – 11q + 5pq – 2pq² + 5p²q – 4p²q + 3pq – 5pq² + 8p – 7q + 10
=18+10 -3p+8p -11q – 7q + 5 pq+ 3pq- 2pq^2 – 5pq^2 + 5 p^2 q – 4p^2 q
= 28 + 5p – 18q + 8pq – 7pq² + p²q

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Questions Asked in CBSE Class VIII exam

Complete the following table of products:

First monomial → Second monomial ↓	2x	–5y	3x²	– 4xy	7x² y	–9x² y²
2x	4x²	. . .	. . .	. . .	. . .	. . .
–5y	. . .	. . .	-15x²y	. . .	. . .	. . .
3x²	. . .	. . .	. . .	. . .	. . .	. . .
– 4xy	. . .	. . .	. . .	. . .	. . .	. . .
7x² y	. . .	. . .	. . .	. . .	. . .	. . .
–9x² y²	. . .	. . .	. . .	. . .	. . .	. . .