A CD costs (2x+7) pesos. How much will 3x CDs of the same kind cost?
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Answered by
1
Answer:
( 2x + 7 ) 3x
=> 6x² + 21x // = the cost of the 3x CDs
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Answered by
1
Answer:
6x²+21x
Cost per CD-(2x+7)
No. of CD's-3x
Therefore, cost of 3x CD's
= (3x) x (2x+7)
= 3x(2x) + 3x(7)
= 6x²+21x
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