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McGraw Hill Glencoe Algebra 2, 2012 View details

1. Expressions and Formulas

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Exercise 32 Page 8

Substitute 34 for w, 8 for x, - 2 for y, and 0.4 for z.

32/75

Practice makes perfect

To evaluate the given expression for w= 34, x= 8, y= - 2, and z=0.4, we should substitute these values into the expression and simplify as much as possible.

(y+z)^2/xw

SubstituteValues

Substitute values

( - 2+0.4)^2/8( 34)

AddTerms

Add terms

(- 1.6)^2/8( 34)

NegBaseToPosPow

(- a)^2 = a^2

2.56/8( 34)

MoveLeftFacToNum

a*b/c= a* b/c