Ask Question
25 June, 19:45

What is the value of the expression 2x2 + 3x-y - 4y2 when x = 2 and y = - 4?

+1
Answers (1)
  1. 25 June, 20:59
    0
    Write the problem: 2x^2+3x-y-4y^2

    Substitute x and y: 2 (2) ^2+3 (2) - (-4) - 4 (-4) ^2

    Exponents and Multiplication: 8+6+4-64

    Add and Subtract: - 46

    Your Answer is - 46
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “What is the value of the expression 2x2 + 3x-y - 4y2 when x = 2 and y = - 4? ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers