Question
Multiply:
$ (5 x+3)(7 x+2) $

Answer

To multiply, we will use distributive law as follows:
$ (5 x+3)(7 x+2) $
$ =5 x(7 x+2)+3(7 x+2) $
$ =(5 x \times 7 x+5 x \times 2)+(3 \times 7 x+3 \times 2) $
$ =\left(35 x^2+10 x\right)(21 x+6) $
$ =35 x^2+10 x+21 x+6 $
$ =35 x^2+31 x+6 $
Thus, the answer is $35 x^2+31 x+6 $.

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