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McGraw Hill Glencoe Algebra 2, 2012 View details

Mid-Chapter Quiz

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Exercise 11 Page 340

Substitute - 3 for x and simplify.

Practice makes perfect

Using the polynomial function p(x), we want to evaluate for the given value, p( -3). To do this, we need to substitute -3 for x in each instance of the x-variable.

p(x)=2/3x^3+ 1/3x^2-5x

Substitute

x= -3

p( -3)=2/3( -3)^3+1/3( -3)^2-5( -3)

CalcPow

Calculate power

p(-3)=2/3(-27)+1/3(9)-5(-3)

MultPosNeg

a(- b)=- a * b

p(-3)=- 2/3*27+1/3*9-(-5)*3

Multiply

p(-3)=- 18+3+15