Question

Evaluate the following expressions by substituting s = 5 and t = 4.

4t2 - 2t - s
1. 50
2. 51
3. 52
4. 53

Answer 1

`\huge\text{Hey there!}`

`\huge\textbf{Equation:}`

`\mathbf{4t^2 - 2t - s}`

`\huge\textbf{Solving:}`

`\mathbf{4t^2 - 2t - s}`

`\mathbf{= 4(4)^2 - 2(4) - 5}`

`\mathbf{= 4(4* 4) - 2(4) - 5}`

`\mathbf{= 4(16) - 2(4) - 5}`

`\mathbf{= 64 - 2(4) - 5}`

`\mathbf{= 64 - 8 - 5}`

`\mathbf{= 56 - 5}`

`\mathbf{= 51}`

`\huge\textbf{Answer:}`

`\huge\boxed{\textsf{Option B. 51}}\huge\checkmark`

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