Sal finds the values of coefficients c, d, and f that make -2y(y^2+cy-3)=dy^3+12y^2+fy true for all y-values.
Multiply monomials by polynomials is a free educational video by Khan Academy.It helps students in grades 9,10,11,12 practice the following standards HSA.APR.A.1.
1. HSA.APR.A.1 : Understand that polynomials form a system analogous to the integers, namely, they are closed under the operations of addition, subtraction, and multiplication; add, subtract, and multiply polynomials.
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