Question

5.4 introduction to polynomial
(1 point)
evaluate each algebraic expression for the given value(s):
a) ( 1 + 7 x ), for ( x = 5 )
answer:

b) ( 8 x - 2 y ), for ( x = 4 ) and ( y = 2 )
answer:

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Explanation:

Step1: Substitute \(x = 5\) into \(1+7x\)

\(1 + 7\times5\)

Step2: Calculate the product and then the sum

First, \(7\times5=35\). Then, \(1+35 = 36\)

Step3: Substitute \(x = 4\) and \(y = 2\) into \(8x-2y\)

\(8\times4-2\times2\)

Step4: Calculate the products and then the difference

First, \(8\times4 = 32\) and \(2\times2=4\). Then, \(32 - 4=28\)

Answer:

a) \(36\)
b) \(28\)