a rectangular field is (4x-2) m long and (x+5) m wide . find the areas of the field in terms of x
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Answer:
( 4x - 2 ) × ( x + 5 )
= 4x ( x + 5 ) - 2 ( x + 5 )
= 4x^2 + 20x - 2x - 10
= 4x^2 + 18x - 10 [ans]
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