trinomial factoring

label Algebra
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20x^2+53x+18

Aug 25th, 2014

20x^2+53x+18

20x^2+8x+45x+18

4x(5x+2)+9(5x+2)

(4x+9)(5x+2)

Just to resolve your confusion 

20 x 18 = 360

8 × 45 = 360

Aug 25th, 2014

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Aug 25th, 2014
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