Fill in the blanks with appropriate answers in the following-1 x-y-y-2 p-q-q-3 -a-b-b-4 2 a-3 b-4 c-2 a-4 c5 m-n-p-m-p6 3 x-2 y-4 z-3 x-2 y-

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Problems Involving Difference of Positive and Negative Numbers

Fill in the b...

Question

Fill in the blanks with appropriate answers in the following:

(1)

(2)

(3)

(4)

(5)

(6)

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a = 3 x - 5 y, b = 6 x + 3 y

c = 2 y - 4 x

2 a - 3 b + 4 c .

=

4 x^{3} 9 x^{2} y 5 y^{2}

6 a^{3} x^{3} 17 x^{2} y^{4} 3 y^{2} a^{2}

If a = 3x − 5y, b = 6x + 3y and c = 2y − 4x, find

(i) a + b − c; (ii) 2a − 3b + 4c.

Add:

(i) 3mn, − 5mn, 8mn, −4mn

(ii) t − 8tz, 3tz − z, z − t

(iii) − 7mn + 5, 12mn + 2, 9mn − 8, − 2mn − 3

(iv) a + b − 3, b − a + 3, a − b + 3

(v) 14x + 10y − 12xy − 13, 18 − 7x − 10y + 8xy, 4xy

(vi) 5m − 7n, 3n − 4m + 2, 2m − 3mn − 5

(vii) 4x²y, − 3xy², − 5xy², 5x²y

(viii) 3p²q² − 4pq + 5, − 10p²q², 15 + 9pq + 7p²q²

(ix) ab − 4a, 4b − ab, 4a − 4b

(x) x²− y² − 1 , y² − 1 − x², 1− x² − y²

Add the following

(a) 2m, 6m, m

(b) 2pq, 4pq, 8pq, pq

(d) 8xyz, 12yzx

(e) 4ab, 5bc

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