(4x3 – 2x2 + 3x – 1) + (5r2 - x - 5).
What is the sum ?

The sum is 4x³ + 3x² + 2x – 6.

Solution:

The correct question is given below.

(4x³ – 2x² + 3x – 1) + (5x² – x – 5). What is the sum?

To find the sum of the polynomial:

Sum of (4x³ – 2x² + 3x – 1) and (5x² – x – 5)

           = (4x³ – 2x² + 3x – 1) + (5x² – x – 5)

Remove the parentheses.

           = 4x³ – 2x² + 3x – 1 + 5x² – x – 5

Group like terms together.

           = 4x³ – 2x² + 5x² + 3x – x – 1 – 5

Add the similar elements. i.e the element with same power.

           = 4x³ + 3x² + 2x – 1 – 5

Subtract the constant terms.

           = 4x³ + 3x² + 2x – 6

The sum is 4x³ + 3x² + 2x – 6.

constant of proportionality = 3 and the equation is c = 3p.

step-by-step explanation:

c = kp   where c = amount of caffeine in mg., p = oz of pepsi and k is the constant of proportionality.

substituting the values given:

24 = 8k

k = 3.

the same value of k will be obtained if we substitute the other given values.

where is the gragh

step-by-step explanation: