Subtract: (6x² + 3x + 4) - (-5x³ + 2x² - 9) what would be the next step in solving this problem? a. (6x² + 5x³) + (3x + 2x²) + (4 - 9) b. (6x² + 2x²) + (3x - 5x³) +(4 + 9) c. (6x² + 2x²) + (4-9) + 3x - 5x³ d. (6x² + 3x + 4) + (5x³ - 2x² + 9)

d. (6x² +3x +4) +(5x³ -2x² -9)

Step-by-step explanation:

An appropriate next step is to distribute the effect of the minus sign on the second set of parentheses. This will let you eliminate parentheses.

a. inappropriate grouping, and the signs of 2x² and 9 are incorrect

b. inappropriate grouping, and the signs of 2x² and 5x³ are incorrect

c. the signs of 2x², 9, and 5x³ are incorrect

d. the appropriate choice

answer: i'm not going to give you the answer, but some hints to work it out.

step-by-step explanation: so, if there is a straight line that means that the line angle is 180°. so we subtract the 2 angle measures provided, (15 and 38) from 180. so the answer is 180 - (38 + 15). (you have to solve the equation)

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: