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3 years ago

Solve for x in the equation x^2 + 4x - 4 = 8

Mathematics

2 answers:

olga nikolaevna [1]3 years ago

5 0

x^2+4x-4=8

Subtract 8 from both sides: x^2+4x-4-8=8-8

Simplify: x^2+4x-12=0

Solve with the quadratic formula: For a=1,b=4,c=-12: x1,2= -4+- (4^2-4*1(-12))sqrt over 2*1

x= 2 and x=-6

erik [133]3 years ago

3 0

Subtracting 8 from both sides of the equation gives

x^2 + 4x - 12 = 0

(x + 6)(x - 2)= 0

x = -6, 2 answer

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Answer:

Step-by-step explanation:

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3 years ago

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Answer:

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2 years ago

Name

Eddi Din [679]

Answer:

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Step-by-step explanation:

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3 years ago

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