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Question:

$5457_w123_h18.png$
Which of the following values of x satisfies the equation above?

A -7
Explaination

Subtracting 5 from both sides of the equation gives $1926_w132_h18.png$. The left-hand side of the equation can be factored, giving (x + 7)(x − 2) = 0. Therefore, the solutions to the quadratic equation are x = −7 and x = 2.