Calculus U-Substitution

What should be used for u in the integral?

∫ 6x (x² +1)² dx

• No u needed

• x² + 1

• ( x² + 1)²

• 6x

What should be used for u in the integral?

• no u needed

• 4t²

• t³

• 1/4t²

What should be used for u in the integral?

• No u needed

• 4x

• x²

• 2x²+6

What method do you use to solve the integral?

• U-substitution

• Guess Method

• Algebra - Split

• Schweinebraten Method

Which problem would you use the "CHANGE OF VARIABLE METHOD"?

• ∫ 2x (x² +1 )² dx

• ∫ x (x² +4 )³ dx

• ∫ 5x (x +1 )⁶ dx

• ∫ 10x (x¹⁰ +8 )⁴ dx

Integrate: ∫5 e^5x dx

• 25 e^5x + C

• 5 e^{5x - 1} + C

• e^5x + C

• (1/5) e^5x + C