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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 80 Page 110

Substitute -5 into the given equation and then simplify.

No

Practice makes perfect
We can determine whether -5 is a solution by substituting it into the equation and simplifying using the order of operations.
x^3-6=2x^2+9-3x
Substitute

x= -5

( -5)^3-6? =2( -5)^2+9-3( -5)
CalcPow

Calculate power

-125-6? =2(25)+9-3(-5)
Multiply

Multiply

-125-6? =50+9+15
AddSubTerms

Add and subtract terms

-131≠74
Since both sides are not equal, -5 is not a solution.
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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)
Exercises 80 (Page 110)
Exercises 81 (Page 110)
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