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𝘶-substitution: defining 𝘶

AP.CALC: FUN‑6 (EU), FUN‑6.D (LO), FUN‑6.D.1 (EK)

Chioma was asked to find integral, left parenthesis, 18, x, squared, plus, 3, right parenthesis, left parenthesis, 6, x, cubed, plus, 3, x, right parenthesis, start superscript, 6, end superscript, d, x using u-substitution.

How should Chioma define u?

(Choice A)
u, equals, 6, x, cubed, plus, 3, x
(Choice B)
u, equals, left parenthesis, 6, x, cubed, plus, 3, x, right parenthesis, start superscript, 6, end superscript
(Choice C)
u, equals, 18, x, squared, plus, 3
(Choice D)
u, equals, x, start superscript, 6, end superscript

Stuck?

AP®︎/College Calculus BC

Course: AP®︎/College Calculus BC > Unit 6

𝘶-substitution: defining 𝘶

AP®︎/College Calculus BC

Course: AP®︎/College Calculus BC > Unit 6

Problem