F(x)=(x+7)^3 expand the function
2 answers:
Step-by-step explanation:
F(x) = (x + 7)³
= 3C0 * x³ + 3C1 * x² * 7 + 3C2 * x * 7² + 3C3 * 7³
= x³ + 21x² + 147x + 343.
Answer:
f(x)=x^3+21x^2+147x+343
Step-by-step explanation:
f(x)=(x+7)(x+7)(x+7)
= f(x)=(x^2+14x+49)(x+7)
= f(x)=(x^3+14x^2+49x+7x^2+98x+343)
= f(x)=x^3+21x^2+147x+343
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