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McGraw Hill Glencoe Algebra 2, 2012 View details

1. Expressions and Formulas

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Exercise 6 Page 7

Substitute - 2 for a, 3 for b, and 4.2 for c.

4.16

Practice makes perfect

To evaluate the given expression for a = -2, b = 3, and c= 4.2, we should substitute these values into the expression and simplify as much as possible.

a^2+4c/3b+2a

SubstituteValues

Substitute values

( -2)^2+4( 4.2)/3( 3)+2( - 2)

NegBaseToPosPow

(- a)^2 = a^2

4+4(4.2)/3(3)+2(-2)

Multiply

4+16.8/9-4

AddSubTerms

Add and subtract terms

20.8/5