Question

What is the value of 3x^2-5xy+ 5y^2 if x=-6 and y=2

Answer 1

188

Step-by-step explanation:

Given the expression:

`3x^2-5xy+5y^2`

When x = - 6 and y =2

`\begin{gathered} 3x^2-5xy+5y^2=3(-6)^2-5(2)(-6)+5(2)^2 \\ =3(-6*-6)-5(2)(-6)+5(2*2)^{} \\ =3\mleft(36\mright)-\mleft(-60\mright)+5\mleft(4\mright) \\ =108+60+20 \\ =188 \end{gathered}`