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Hello, I need some help with this homework question, please?HW Q22

Hello, I need some help with this homework question, please?HW Q22-example-1
User Rethinavel
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1 Answer

8 votes
8 votes

ANSWER :

A.

EXPLANATION :

Recall the quadratic formula :


x=(-b\pm√(b^2-4ac))/(2a)

From the problem :


x^2+10x+7=0

Using the quadratic formula with a = 1, b = 10 and c = 7


\begin{gathered} x=(-10\pm√(10^2-4(1)(7)))/(2(1)) \\ \\ x=(-10\pm√(72))/(2) \\ \\ x=(-10\pm6√(2))/(2) \\ \\ x=-5\pm3√(2) \end{gathered}

User Baskaran
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