Find the following products: (7 x+2 y) (x+4 y) - Vidyadip

Question

Find the following products:
$(7 x+2 y) \times(x+4 y)$

✓

Answer

$(7 x+2 y) \times(x+4 y)$
$=7 x(x+4 y)+2 y(x+4 y)$
$=7 x^2+28 x y+2 x y+8 y^2$
$=7 x 2+30 x y+8 y^2$

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