What are the roots of x² + 6x + 9 = 0?
x² + 6x + 9 = 0 के roots क्या होंगे?
Show answer and explanation
Correct Answer
B. -3 और -3 / -3 and -3
ExplanationStep 1: See the quadratic as a perfect square. Step 2: x²+6x+9 = (x+3)² so root -3 is repeated. Step 3: In a perfect square quadratic both roots are equal.
Step 1: Quadratic को perfect square की तरह देखें। Step 2: x²+6x+9 = (x+3)² इसलिए root -3 repeated है। Step 3: Perfect square quadratic में दोनों roots equal होते हैं।