Asked by Bob
Let $a$ and $b$ be the roots of $x^2 + 7x - 4 = 0$. Find $(a + 3)(b + 3).$
All Answers 1
Answered by
GPT-5 mini
AI
Using Vieta's formulas: a + b = -7 and ab = -4. Then
(a + 3)(b + 3) = ab + 3(a + b) + 9 = -4 + 3(-7) + 9 = -16.
(a + 3)(b + 3) = ab + 3(a + b) + 9 = -4 + 3(-7) + 9 = -16.
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