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poizon [28]
4 years ago
8

5. Evaluate the following expression for r = 5. 31² + (2r - 4)

Mathematics
1 answer:
Oxana [17]4 years ago
6 0
<h2>Answer: <u><em>r=−24.1961</em></u></h2>

Step-by-step explanation:

Let's solve your equation step-by-step.

r=5.312+2r−4

<u>Step 1: Simplify both sides of the equation.</u>

r=5.312+2r−4

r=28.1961+2r+−4

r=(2r)+(28.1961+−4)(Combine Like Terms)

r=2r+24.1961

r=2r+24.1961

<u>Step 2: Subtract 2r from both sides.</u>

r−2r=2r+24.1961−2r

−r=24.1961

<u>Step 3: Divide both sides by -1.</u>

−r−1=24.1961−1

<h2><em><u>r=−24.1961</u></em></h2>

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