What is the value of the algebraic expression 4x^2y-2xy^2+y if x=1 and y=-4?

May 16, 2017

$- 52$

Explanation:

You can substitute the variables for the number:

$4 {x}^{2} y = 4 \cdot {1}^{2} \cdot \left(- 4\right) = - 16$

$2 x {y}^{2} = 2 \cdot 1 \cdot {\left(- 4\right)}^{2} = 2 \cdot 16 = 32$

$y = - 4$

Then you can solve:

$- 16 - 32 - 4 = - 52$

Hope this helps!