Register
What is the value of 3x^2-5xy+ 5y^2 if x=-6 and y=2
187k views
2 votes
What is the value of 3x^2-5xy+ 5y^2 if x=-6 and y=2

User AshMan
by
8.2k points

1 Answer

4 votes

Answer:

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}

User Erran Morad
by
8.2k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

8.8m questions

11.4m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
Write words to match the expression. 24- ( 6+3)
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
The cost of 5 similar digital cameras and 3 similar video cameras is 3213. Each video camera costs 4 times as much as each digital camera. John buys a digital camera and a video camera. How much does he
Link Copied!