Respuesta :

Answer:

X can either be 7, or -10. You can prove this by plugging in the numbers yourself :)

Step-by-step explanation:

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First you Factor out x from the expression. Then Factor out (x+10) from the expression. Seprate into possible cases (When the product of factors equals 0, at least one factor is 0). Then solve the equations for x. This equation has two solutions x1=-10 and x2=7
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