What is the value of x3 + 4, when x = 6?
2 answers:
Well let’s remember the rules of pemdas.
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
Since 6 has a exponent of 3 we could do 6^3 before adding 4. 6^3= 216
So then we would have 216+4.
That would equal 220. The value when x=6 is 220.
Plug in 6 for x
3(6) + 4 = 22
The value if 22, or you can write it like:
f(6) = 22
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