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Algebraic Expressions and Identities

Short Answer Type

41.

Obtain the product of

^{m, -mn, mnp}

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42.

Find the product

(i) 2x(3x + 5xy) (ii) a²(2ab - 5c)

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43.

Find the product : (4p² + 5p + 7) x 3p

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44.
Carry out the multiplication of the expressions in each of the following pairs
4p, q + r

4p x ( q + r )   = ( 4p x q) + ( 4p x r)
                     = ( 4 x1) x p xq + ( 4 x1) x p x r
                      = 4 x pq + 4 x pr
                      = 4pq + 4 pr

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45.

Carry out the multiplication of the expressions in each of the following pairs
ab, a - b

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46.

Carry out the multiplication of the expressions in each of the following pairs
a + b, 7a²b²

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47.

Carry out the multiplication of the expressions in each of the following pairs
a² - 9, 4a

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48.

Carry out the multiplication of the expressions in each of the following pairs
pq + qr + rp, 0

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49.

Complete table.

	First expression	Second expression	Product
(i) (ii) (iii) (iv) (v)	a x + y - 5 p 4p²q²a + b + c	a + c + d 5xy 6p² - 7p + 5 p²- q² abc	.... .... .... .... ....