Question

Factor 15y^2 + 10y - 40

Answer 1

Answer: 5(y+2)(3y-4)

Explanation:

Answer 2

Step 1: Write out the expression

`15y^2+10y-40`

Step 2: Factorize the expression

`\begin{gathered} 15y^2+10y-40=15y^2+30y-20y-40 \\ =15y(y+2)-20(y+2)=(15y-20)(y+2) \\ =5(3y-4)(y+2) \end{gathered}`

Hence, factorizing 15y^2 + 10y - 40​ gives 5(3y-4)(y+2)