Please help me solve the above correctly and I will mark you as brainliest​

Step-by-step explanation:

   Sum = 4x³ - 3x² + 3x + 8 + (6x³ - 7x² + 4x) + (-8x³ + 7x²)     [write the terms as given by the quetion and group like terms]

⇒ Sum = (4x³ + 6x³ - 8x³) + (- 3x²  - 7x² + 7x²) + ( 3x + 4x) + 8   [complete the addition of like terms]

∴ sum = 2x³ - 3x² + 7x + 8

2x³ - 3x² + 7x + 8

Step-by-step explanation:

We require to add

4x³ - 3x² + 3x + 8 + 6x³ - 7x² + 4x - 8x³ + 7x² ← collect like terms

= (4 + (6 - 8)x³ + (- 3 - 7 + 7)x² + (3 + 4)x + 8

= 2x³ + (- 3)x² + 7x + 8

= 2x³ - 3x² + 7x + 8

answer: get more recipes with 3 magazines for $20! i often use chicken broth instead of water. 3 tablespoons butter, divided; 1/2 cup freshly grated parmigiano-reggiano bring water and salt to a boil in a large saucepan; pour polenta slowly into 5 minutes to thicken; stir and taste for salt before transferring to a serving bowl.

x ≥ 18 is your answer

step-by-step explanation:

let "a number" = x

(2/3)x + 17 ≥ 29

isolate the variable (x). do the opposite of pemdas (parenthesis, exponent (& root), multiplication, division, addition, subtraction).

first, subtract 17 from both sides.

(2/3)x + 17 (-17) ≥ 29 (-17)

(2/3)x ≥ 29 - 17

(2/3)x ≥ 12

next, multiply 3/2 to both sides to isolate the x

(3/2)(2/3)x ≥ 12(3/2)

x ≥ 12(3/2)

simplify. multiply, then divide

x ≥ (12 * 3)/2

x ≥ (36)/2

x ≥ 18

x ≥ 18 is your answer

~