Question

multiply (3x + y) by (4x +2y)

Answer 1

Step-by-step explanation:

$(3x + y) \times (4x + 2y)$

$12 {x}^{2} + 6xy + 4xy + 2 {y}^{2}$

$12 {x}^{2} + 2 {y}^{2} + 10xy$

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Answer 2

Answer:

12$x^{2}$ + 10$x^{} y^{}$ + 2$y^{2}$

Step-by-step explanation:

(3$x^{}$ + $y^{}$) x (4$x^{}$ + 2$y^{}$)

3$x^{}$  (4$x^{}$ + 2$y^{}$) +  $y^{}$ (4$x^{}$ + 2$y^{}$)

[(3$x^{}$ x 4$x^{}$) + (3$x^{}$ x 2$y^{}$) + ($y^{}$ x 4$x^{}$ ) + ($y^{}$ x 2$y^{}$)  ]

12$x^{2}$ + 6$x^{} y^{}$ + 4$x^{} y^{}$ + 2$y^{2}$

12$x^{2}$ + 10$x^{} y^{}$ + 2$y^{2}$