Question

3/4x^3-68x^2-3x+5
Putin
x=-2
​

Answer 1

Step-by-step explanation:

3/4 × x³ - 68 × x² - 3 × x + 5

= 3/4 × (-2)³ - 68 × (-2)² - 3 × (-2) + 5

= 3/4 × (-8) - 68 × 4 -3 × (-2) + 5

= 3 × (-2) - 68 × 4 + 6 + 5

= -6 - 272 + 6 + 5

= -278 + 11

= -267