The value of b according to the binomial expansion expressed in the form, (ax + b)⁴ is; b = 15.
The binomial expansion given is;
625x4 – 7,500x3 + 33,750x2 – 67,500x + 50,625.
While expressing the binomial expansion in the form; (ax + b)⁴;
The value of b can be evaluated as follows;
In essence, the quartic root of 50625 is the value of b as follows;
[tex]b = \sqrt[4]{50625} [/tex]
b = 15. OR. b = -15
However, more convincingly, the value of b is; Choice D: 15
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