Respuesta :
Answer:
∣x + 7.5∣ = 2.5
Step-by-step explanation:
∣x + 7.5∣ = 2.5
x + 7.5 = -2.5 OR x + 7.5 = 2.5
-7.5 -7.5 -7.5 -7.5
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x = -10 x = -5
As you can see, the equation ∣x + 7.5∣ = 2.5, satisfies both of the x values, x=-10 and x=-5.
Answer:
|(x+10)(x+5)| = 0
Step-by-step explanation:
Try to make 0 on both sides.
To do this, you have to: add or minus the amount the value represent.
If x is 30, then -30 to make it 0
If x is -30, then +30 to make it 0
In this case, since x is -10 and -5, add 10 and 5 which is 0.
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