Integration of algebraic expression. 1. f(4x³ - 3x² +6x-1) dx 2. √(x^² - 1/2 x ² + 1 + x - 2) dx 4 2 5 3. √ ( ²7/3 + 23²323 - 12/3 + 4 ) d x x³ 2x³ x² 2 4. S (√x³ + √x²) dx 5.f5x²(x³ +2) dx