Evaluate
2x+4.28
Factor
2x+4.28
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2x+4+2\times 0.1+8\times 0.01
Add 0 and 4 to get 4.
2x+4+0.2+8\times 0.01
Multiply 2 and 0.1 to get 0.2.
2x+4.2+8\times 0.01
Add 4 and 0.2 to get 4.2.
2x+4.2+0.08
Multiply 8 and 0.01 to get 0.08.
2x+4.28
Add 4.2 and 0.08 to get 4.28.
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