Q. 1.12 - Intermediate Algebra

Question

Evaluate for  x=6: (a)x³  (b)4^x  (c)6x²-4x-7 

Step-by-Step Solution

Answer

The value of the expressions for x=6 are:

(a)216

(b)64

(c)185

Step 1 Given information

The given Algebraic expressions are:

(a)x³  (b)4^x  (c)6x²-4x-7

We have to evaluate the given expressions for x=6.

Part (a) Step 1 Evaluate the expression for x=6

The expression is x³ 

Replace x with 6 :

6³

=216

The value of the expression is 216.

Part (b) Step 1 Evaluate the expression for x=6.

The expression is 2^x 

Replace x with 6 :

2⁶

=64

The value of the expression is 64.

Part (c) Step 1 Evaluate the expression for x=6.

The expression is 6x²-4x-7 

Replace x with 6 :

6(6)²-4(6)-7

=216-24-7

=185

The value of the expression is 185.