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Big Ideas Math Algebra 2, 2014
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Big Ideas Math Algebra 2, 2014 View details
2. Complex Numbers
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Exercise 81 Page 110

Substitute - 34 into the given equation and then simplify.

No

Practice makes perfect

We can determine whether - 34 is a solution by substituting it into the equation and simplifying using the order of operations.

- x^2+4x? =19/3x^2
Substitute

x= -3/4

-( -3/4)^2+4( -3/4)? =19/3( -3/4)^2
CalcPow

Calculate power

-(9/16)+4(-3/4)? =19/3(9/16)
â–¼
Multiply fractions
MultFrac

Multiply fractions

-(9/16)+4(-3/4)? =19*9/3*16
ReduceFrac

a/b=.a /3./.b /3.

-(9/16)+4(-3/4)? =19*3/16
Multiply

Multiply

-(9/16)+4(-3/4)? =57/16
MoveLeftFacToNum

a*b/c= a* b/c

-(9/16)-12/4? =57/16
ExpandFrac

a/b=a * 4/b * 4

-(9/16)-48/16? =57/16
SubFrac

Subtract fractions

-57/16≠57/16

Since both sides are not equal, - 34 is not a solution.

Subchapter links expand_more
arrow_right Communicate Your Answer p.103
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arrow_right Monitoring Progress p.104-107
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arrow_right Exercises p.108-110
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Exercises 75 (Page 110)
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Exercises 79 (Page 110)
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Exercises 81 (Page 110)
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