X = -3
Pull out the like terms: -7x - 21 = -7 × ( x + 3)
Solve: -7 = 0
Solve: x + 3 = 0
Subtract 3 from both sides of the equation
So, x = -3
Step-by-step explanation:
x^2 +10x + 24
use FOIL
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Answer:
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Step-by-step explanation:
Answer:
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Step-by-step explanation:
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