What are the roots of x² + 7x + 12 = 0?
x² + 7x + 12 = 0 के roots क्या होंगे?
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Correct Answer
B. -3 और -4 / -3 and -4
ExplanationStep 1: Factor the quadratic. Step 2: x² + 7x + 12 = (x+3)(x+4) so roots are -3 and -4. Step 3: Positive middle term and positive constant can give both negative roots.
Step 1: Quadratic को factor करें। Step 2: x² + 7x + 12 = (x+3)(x+4) इसलिए roots -3 और -4 हैं। Step 3: Positive middle और positive constant में दोनों roots negative हो सकते हैं।