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Pearson Algebra 1 Common Core, 2011

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Pearson Algebra 1 Common Core, 2011 View details

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Exercise 4 Page 543

Substitute -1, 3, - 2 for a,b,c, in the given expression.

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Practice makes perfect

To evaluate the given expression for a= -1, b= 3 and c= - 2, we should substitute these values into the expression and simplify as much as possible.

b^2-4ac/2a

SubstituteValues

Substitute values

3^2-4( - 1)( - 2)/2( - 1)

Calculate power

9-4(-1)(- 2)/2(- 1)

a(- b)=- a * b

9-(- 4)(- 2)/- 2

MultNegNegOnePar

- a(- b)=a* b

9-8/- 2

Subtract term

1/-2

MoveNegDenomToFrac

Put minus sign in front of fraction

- 1/2

Calculate quotient

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