multiplying binomials in two variables
multiply
(y+5z)(y+8z)
simplify your answer
(y+5z)(y+8z)
= y(y) + y(8z) + 5z(y) + 5z(8z)
= y^2 + 8yz + 5zy + 40z^2
= y^2 + 13yz + 40z^2
multiply
(y+5z)(y+8z)
simplify your answer
= y(y) + y(8z) + 5z(y) + 5z(8z)
= y^2 + 8yz + 5zy + 40z^2
= y^2 + 13yz + 40z^2