15x2 + 7x-2 and 5x-1 are two algebraic sums A) Subtract the second sum from the first sum. B) Find the product of the two receipts. C) Divide the first sum by the second sum.
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a)
15x2 + 7x-2 - 5x-1 = 15x2 +2x - 3
b)
(15x2 + 7x-2)(5x-1) = 75x^3 - 15x^2 + 35x^2 - 7x -10x + 2 = 75x3 + 20x2 - 17x + 2
c) ( 15x2 + 7x-2) /( 5x-1)
=[ 3x (5x-1) + 2(5x-1) ] / (5x-1)]
= [(3x+2 ) (5x-1) ] / ( 5x-1) = 3x+2
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