Question
Evaluate -4x^2+ 4x - 5 at the point x = 4
218
likes1089 views
Answer to a math question Evaluate -4x^2+ 4x - 5 at the point x = 4
Lurline
4.6107 Answers
1. Substitute \( x = 4 \) in the expression \(-4x^2 + 4x - 5\).
2. Calculate \((-4)(4)^2\):
-4 \cdot 16 = -64
3. Calculate \(4 \cdot 4\):
4 \cdot 4 = 16
4. Subtract 5:
-64 + 16 - 5
5. Simplify:
-64 + 16 = -48
-48 - 5 = -53
6. Final answer:
-61
2. Calculate \((-4)(4)^2\):
3. Calculate \(4 \cdot 4\):
4. Subtract 5:
5. Simplify:
6. Final answer:
Frequently asked questions (FAQs)
What is the value of cos(45°) - sin(60°) + 2cos(30°) - sin(120°)?
+
What is the real part of the complex number (3 + 2i)?
+
Question: Find the value of sin(45°) + cos(30°) - tan(60°) × sec(120°) - cot(75°) + cos(0°)
+
New questions in Mathematics