CTEVT Prep
Practice
Question Bank
Mock Test
Papers
Guidance
AI Assist
Log In
Sign Up
Algebra
easy · Past Paper
Questions
Mathematics
Algebra
Quadratic Equations
Solve for x: x^2 - 16 = 0.
A
4
B
-4
C
±4
D
16
✓ Correct Answer: C — ±4
x^2 = 16 leads to x = ±sqrt(16) = ±4.
Share this question
WhatsApp
Twitter / X
Copy Link
More from Algebra
Factorize x^2 - 4x + 4 - y^2 - 6y - 9.
Solve for x: 1/2(x+1) + 1/3(x-1) = 5/12(x-2). (Checking SEE patterns for hard linear).
What is the degree of the polynomial P(x) = 5x^4 - 3x^2 + 7x - 2?
Solve for x: (x+3)(x-1) = 0.
If the roots of (k-1)x^2 - 10x + 3 = 0 are reciprocal, find k.