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Question

Question 83 (xxi)

Multiply the following:

(3x2+4x8),(2x24x+3)
 


Solution

We have, (3x2+4x8) and 2x24x+3
(3x2+4x8)(2x24x+3)=3x2(2x24x+3)+4x(2x24x+3)8(2x24x+3)=6x412x3+9x2+8x316x2+12x16x2+32x24
=6x412x3+8x3+9x216x216x2+12x+32x24   [grouping like terms]
=6x44x323x2+44x24


Mathematics
NCERT Exemplar
Standard VIII

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