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Solve for x: $1910_w132_h18.png$

8
0
0

A
-1 or -9

$9217_w142_h18.png$

For this expression to be true, the left side of the expression must equal zero. Therefore, either (x + 1) or (x + 9) must equal zero:

If (x + 1) = 0, x must equal -1

If (x + 9) = 0, x must equal -9

So the solution is that x = -1 or -9.

Explaination

Factor the quadratic equation: $1987_w132_h18.png$ $9217_w142_h18.png$

For this expression to be true, the left side of the expression must equal zero. Therefore, either (x + 1) or (x + 9) must equal zero:

If (x + 1) = 0, x must equal -1

If (x + 9) = 0, x must equal -9

So the solution is that x = -1 or -9.

B 2 or 1

C 8 or 3

D 7 or -2

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