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Chapter 2: Q. 2 (page 68)

If x=-2, the value of the expression 3x2-5x+1xis _______.

Short Answer

Expert verified

The value of expression is432.

Step by step solution

01

Step 1. Given Information

If x=-2, the value of the expression3x2-5x+1x is _______.

02

Step 2. The given expression is 3x2-5x+1x

We find the value of expression after puttingx=-2.

03

Step 3. Putting x=-2 in the given expression

=3(-2)2-5(-2)+1(-2)

Simplifying the expression

=3脳4+10-12=12+10-12=22-12

04

Step 4. The LCD is 2.

So=22脳22-12

=442-12=44-12=432

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Most popular questions from this chapter

In Problems 7鈥�18, match each graph to one of the following functions:

A.y=x2+2B.y=-x2+2C.y=x+2D.y=-x+2E.y=(x-2)2F.y=-(x+2)2G.y=x-2H.y=-x+2I.y=2x2J.y=-2x2K.y=2xL.y=-2x

True or False

To obtain the graph of f(x)=x+2, shift the graph ofy=x horizontally to the right 2units.

True or False The domain of (f.g)(x)consists of the numbers x that are in the domains of both fandg.

In Problems 19-26,write the function whose graph is the graph of y=x3but is:

Shifted to the left 4units

In Problems 33鈥� 44, determine algebraically whether each function is even, odd, or neither.

h(x)=-x33x2-9
See all solutions

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